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SAO/NASA ADS Abstract Service Stopword List

The ADS search system recognizes certain words as being not important for searches and removes those words from a search. There are two types of stopwords, case insensitive stopwords and case sensitive stopwords. The former are words like much and but. They are ignored in a search. The latter are words that are stop words in some context, but are significant in other contexts. For instance and is a stopword, but And is significant. Since and does not occur at the beginning of a sentence, we assume that anytime And is in the text, it means Andromeda.

Following are the lists of case sensitive stopwords and case insensitive stopwords for the three ADS databases.

The case sensitive stopword lists are significant because if you want to search for And you have to specify the correct case, otherwise the word gets removed from the query.



Case sensitive stopwords for the Astronomy database


    AND      An      BE      By      Go      No      SN      Th 
     al      am      an     and      be      by      go      he 
    her      ie    nice      no     sic      sn      th    very 

Case insensitive stopwords for the Astronomy database


              A            AAND            ABLE           ABOUT           ABOVE 
        ACQUIRE          ACROSS  AFOREMENTIONED           AFTER           AGAIN 
        AGAINST             AGO           AGREE       AGREEABLE           AHEAD 
           AKIN          ALBEIT          ALCUNE        ALGHOUGH         ALGUNOS 
            ALL          ALMOST           ALONE           ALONG         ALREADY 
            ALS            ALSO        ALTHOGUH         ALTHOUG        ALTHOUGH 
      ALTHOUUGH       ALTHROUGH      ALTOGETHER          ALWAYS         AMAZING 
      AMAZINGLY       AMBITIOUS      AMBIVALENT            AMID          AMIDST 
          AMONG         AMONGST          AMOUNS          AMOUNT        AMOUNTED 
      AMOUNTING         AMOUNTS            ANEW         ANOTHER             ANY 
        ANYMORE          ANYONE        ANYTHING          ANYWAY        ANYWHERE 
          APART           APRES           APRES           APTLY         APTNESS 
            ARE           ARENT         ARISING         AROOUND         ARORUND 
         AROUND              AS         ASSUMED              AT            ATOP 
            AUF         AUJOURD          AUTOUR           AUTRE             AUX 
       AVAILABE    AVAILABILITY       AVAILABLE       AVALIABLE           AVANT 
           AVEC       AVIALABLE           AWAIT         AWAITED        AWAITING 
         AWAITS            AWAY           AYANT             BAD              BE 
         BECAME         BECAMES         BECASUE         BECAUSE          BECOME 
        BECOMES        BECOMING         BECUASE           BEEEN          BEEING 
           BEEN          BEFALL          BEFORE      BEFOREHAND          BEHIND 
            BEI           BEING       BEKANNTEN          BELONG          BELONG 
         BELONG        BELONGED       BELONGING         BENIGHT          BEREFT 
         BESIDE         BESIDES            BEST          BETEEN          BETTER 
       BETWEEEN         BETWEEM         BETWEEN          BETWEN          BEWEEN 
         BISHER         BIZARRE            BOTH           BRING          BUSILY 
            BUT          BUYING            CALL            CAME             CAN 
         CANNOT            CANT           CETTE          CHAQUE          CHOSEN 
            COL            COME           COMES          COMING         COMINGS 
            CON          CONNUE      CONSIDERED           COULD         COULDNT 
            DAL            DANS             DAS            DEEM          DEEMED 
        DEEMING           DEGLI           DELLA           DELLE             DEM 
         DEPRES             DES         DESPITE             DID          DISUSE 
             DO            DOES           DOESN          DOESNT           DOING 
         DOINGS            DONE            DONT              DU             DUE 
           DULY           DURCH         DURINGS            EACH              ED 
            EIN            EINE           EINEM           EINER           EINES 
         EINIGE         EINIGER        EINNIGER          EITHER            ELLE 
           ELSE       ELSEWHERE           ENFIN          ENOUGH       ERSTWHILE 
            EST              ET             ETC            EVER           EVERY 
      EVERYBODY        EVERYDAY        EVERYONE      EVERYTHING      EVERYWHERE 
         FAITES         FINALLY          FOLLOW             FOR         FOREVER 
          FOUND            FROM            FUER             FUR         FURTHER 
      FURTHERED      FURTHERING     FURTHERMORE        FURTHERS        FURTHEST 
         FUTHER            GAVE           GEGEN             GET            GIVE 
         GIVEEN           GIVEN           GIVER           GIVES          GIVING 
          GOING            GONE             GOT             HAD          HAPPEN 
      HAPPENDED        HAPPENED       HAPPENING      HAPPENINGS         HAPPENS 
   HAPPENSTANCE          HARDLY             HAS           HASNT            HAST 
         HASTEN        HASTENED         HASTENS            HATH            HAVE 
         HAVENT          HAVING           HENCE        HERAFTER            HERE 
      HEREAFTER      HEREBEFORE          HEREIN      HERETOFORE        HEREWITH 
           HERS             HIM         HIMSELF             HIS         HITERTO 
       HITHERTO            HORS             HOW         HOWEVER             HUI 
       IDEALISE        IDEALISM              IF              IM              IN 
       INASMUCH          INDEED         INGOING         INSOFAR         INSTEAD 
        INTERIM            INTO              IS            ISNT              IT 
            ITS          ITSELF            JUST            KEEP         KEEPING 
          KEEPS            KEPT            KIND            KNEW            KNOW 
        KNOWING           KNOWS              LA             LES            LEST 
            LET            LETS            LEUR            LEUR           LEURS 
           LIKE      LIKELINESS         LIKENED          LIKENS           LIKES 
       LIKEWISE          LIKLEY            MADE            MAIS            MAKE 
          MAKES          MAKING             MAY           MAYBE        MEANTIME 
      MEANWHILE           MEINE            MEME            MERE          MERELY 
          MIGHT          MIGHTY        MOREOVER          MOSTLY            MUCH 
           MUST              MY            NACH        NACHSTEN            NEED 
         NEEDED         NEEDING        NEEDLESS      NEEDLESSLY           NEEDS 
          NEEED           NEGLI         NEITHER             NEL            NELL 
          NEVER    NEVERTHELESS   NEVERTHERLESS    NEVETHERLESS            NEXT 
         NICELY           NICHT            NONE     NONETHELESS             NOT 
        NOTHING           NOTRE NOTWITHSTANDING             NOW        NOWADAYS 
        NOWHERE        OBTAINED              OF             OFF            OFFS 
          OFTEN         OFTENLY              ON            ONCE            ONES 
        ONESELF           ONETO         ONGOING            ONLY            ONTO 
         ONWARD         ONWARDS              OR           OTHER          OTHERS 
      OTHERWISE        OTHEWISE              OU           OUGHT             OUR 
           OURS       OURSELVES             OUT     OUTSTANDING   OUTSTANDINGLY 
            OWN           OWNED           PAPER            PART         PENDANT 
        PERHAPS        PERPHAPS            PEUT          PONDER      PONDERABLE 
       POSSIBLE        POSSIBLY        PRESENTD       PRESENTED            PRIS 
         PROPOS             PUT            PUTS         PUTTING             QUE 
           QUEL        QUELQUES           QUERY        QUESTION           QUICK 
        QUICKLY           QUITE          QURREY         RACONTE          RATHER 
         REALLY            REDO         REDOING          REDONE            SAID 
           SAME             SAY          SAYING            SAYS             SEE 
           SEEM          SEEMED         SEEMING       SEEMINGLY           SEEMS 
           SEHR          SEINER            SEIT          SELDOM        SEMBLAVA 
          SHALL             SHE          SHOULD        SHOULDNT            SHOW 
         SHOWED         SHOWING           SHOWN           SHOWS           SINCE 
            SIT            SITS         SITTING              SO           SOBRE 
           SOME         SOMEDAY         SOMEHOW         SOMEONE       SOMETHING 
       SOMETIME       SOMETIMES        SOMEWHAT       SOMEWHERE        SOMTIMES 
       SOMWEHAT            SOON          SOONER            SUCH         SUGGEST 
      SUGGESTED        SUGGESTS           SUGLI           SULLA           SULLE 
           SURE          SURELY          SUREST         SURMISE        SURMISED 
           TAKE           TAKEN          TAKENS           TAKES          TAKING 
           TALE          TALLER         TALLIED         TALLIES             TEH 
           TELL           TELLS            TEND          TENDED         TENDING 
          TENDS            THAN           THANK         THANKED          THANKS 
           THAT             THE            THEE           THEIR          THEIRS 
           THEM      THEMSELVES            THEN          THENCE     THENCEFORTH 
         THERBY           THERE      THEREAFTER         THEREBY       THEREFORE 
      THEREFORM       THEREFROM         THEREIN         THEREOF         THEREON 
        THERETO       THEREWITH        THERFORE           THESE            THEY 
          THEYS            THHE            THIS        THOROUGH      THOROUGHLY 
    THOROUGHPUT         THORUGH           THOSE          THOUGH       THOUGHOUT 
        THOUGHT      THOUGHTFUL     THOUGHTLESS      THOUGHTOUT        THOUGHTS 
     THREREFORE       THROUGHLY      THROUGHOUT      THROUGHPUT     THROUGHPUTS 
       THROUGHS        THROUGHT            THRU            THUS         THUSFAR 
            TIL            TILL              TO           TODAY          TODAYS 
       TOGETHER           TOGOT        TOMORROW             TOO            TOOK 
     TREMENDOUS    TREMENDOUSLY           TREND          TRENDS            TRES 
          TRIED           TRIES            TRIP        TROUVEES     TRUSTWORTHY 
         TRUTHS             TRY          TRYING            UBER      UBIGUITOUS 
    UBIQUITIOUS      UBIQUITOUS    UBIQUITOUSLY  UBIQUITOUSNESS        UBIQUITY 
     UBIQUOTOUS            UGLY              UM              UN          UNABLE 
 UNAVAILABILITY     UNAVAILABLE         UNAWARE             UND         UNDERGO 
      UNDERGOES      UNDERGOING       UNDERGONE        UNDERGOS      UNDERNEATH 
   UNDERSTUDIED       UNDERTAKE      UNDERTAKEN      UNDERTAKES     UNDERTAKING 
   UNDERTAKINGS       UNDERTOOK        UNDERWAY       UNDERWENT           UNDUE 
         UNDULY             UNE    UNEMCUMBERED   UNEQUIVOCABLY     UNEQUIVOCAL 
  UNEQUIVOCALLY     UNFORTUNATE   UNFORTUNATELY         UNFOUND      UNFURLABLE 
      UNFURLING       UNHURRIED          UNLESS          UNLIKE    UNLIKELINESS 
        UNLIKEY         UNLIKLY      UNPLEASANT          UNSERE         UNSERER 
        UNSERES           UNTER           UNTIL        UNTOWARD         UNTRIED 
       UNUSABLE          UNUSED        UNWANTED        UNWIELDY        UPADATED 
       UPCOMING         UPGOING          UPHELD            UPON       UPPERMOST 
          UPSET          UPSETS       UPSETTING          UPTAKE            UPTO 
           URGE           URGED          URGENT        URGENTLY              US 
      USABILITY          USABLE          USAGES         USEABLE            USED 
         USEFUL     USEFULLNESS        USEFULLY      USEFULNESS     USEFULNESSS 
        USELESS            USES           USING           USUAL         USUALLY 
         USUALY       UTILISANT     UTILISATION        UTILISED        UTILISEE 
       UTILISES       UTILITIES         UTILITY         UTILIZE        UTILIZED 
       UTILIZES       UTILIZING        UTILIZNG          UTMOST         UTTERLY 
         UUSING          VASTLY        VERACITY            VERS             VIA 
            VIS           VIVID         VIVIDLY            WANT          WANTED 
        WANTING           WANTS             WAS           WASNT             WAY 
             WE          WEITER          WELCHE         WELCHES         WELCOME 
       WELCOMED           WENIG            WENT            WERE            WHAT 
       WHATEVER      WHATSOEVER            WHEN          WHENCE        WHENEVER 
         WHERAS           WHERE         WHEREAS         WHEREBY       WHEREFROM 
        WHEREIN         WHERETO       WHEREUPON        WHEREVER          WHETER 
        WHETHER           WHICH       WHICHEVER           WHILE          WHILST 
        WHITHIN             WHO         WHOEVER       WHOLESALE          WHOLLY 
           WHOM        WHOMEVER      WHOMSOEVER           WHOSE             WHY 
          WIHCH            WIHT          WIHTIN           WIITA           WIITH 
       WIITHOUT            WILL         WILLING     WILLINGNESS            WISH 
         WISHED          WISHES         WISHING             WIT            WITH 
     WITHDRAWAL     WITHDRAWING       WITHDRAWN          WITHIN         WITHING 
        WITHOUT  WITHPARTICULAR       WITHSTAND    WITHSTANDING        WITHTHAT 
        WITHTHE          WITOUT          WONDER       WONDERFUL     WONDERFULLY 
      WONDERING      WONDERLAND         WONDERS        WONDROUS            WONT 
           WORD           WORDS            WORN           WORNG        WORRYING 
     WORTHWHILE          WORTHY           WOULD         WOULDNT           WRECK 
        WRECKER        WRECKING             YES             YET             YOU 
           YOUR              ZU             ZUM             ZUR 



Case sensitive stopwords for the Physics database


    AND      An      BE      By      Go      No      SN      Th 
     al      am      an     and      be      by      go      he 
    her      ie    nice      no     sic      sn      th    very 

Case insensitive stopwords for the Physics database


              A            AAND            ABLE           ABOUT           ABOVE 
        ACQUIRE          ACROSS  AFOREMENTIONED           AFTER           AGAIN 
        AGAINST             AGO           AGREE       AGREEABLE           AHEAD 
           AKIN          ALBEIT          ALCUNE        ALGHOUGH         ALGUNOS 
            ALL          ALMOST           ALONE           ALONG         ALREADY 
            ALS            ALSO        ALTHOGUH         ALTHOUG        ALTHOUGH 
      ALTHOUUGH       ALTHROUGH      ALTOGETHER          ALWAYS         AMAZING 
      AMAZINGLY       AMBITIOUS      AMBIVALENT            AMID          AMIDST 
          AMONG         AMONGST          AMOUNS          AMOUNT        AMOUNTED 
      AMOUNTING         AMOUNTS            ANEW         ANOTHER             ANY 
        ANYMORE          ANYONE        ANYTHING          ANYWAY        ANYWHERE 
          APART           APRES           APRES           APTLY         APTNESS 
            ARE           ARENT         ARISING         AROOUND         ARORUND 
         AROUND              AS         ASSUMED              AT            ATOP 
            AUF         AUJOURD          AUTOUR           AUTRE             AUX 
       AVAILABE    AVAILABILITY       AVAILABLE       AVALIABLE           AVANT 
           AVEC       AVIALABLE           AWAIT         AWAITED        AWAITING 
         AWAITS            AWAY           AYANT             BAD              BE 
         BECAME         BECAMES         BECASUE         BECAUSE          BECOME 
        BECOMES        BECOMING         BECUASE           BEEEN          BEEING 
           BEEN          BEFALL          BEFORE      BEFOREHAND          BEHIND 
            BEI           BEING       BEKANNTEN          BELONG          BELONG 
         BELONG        BELONGED       BELONGING         BENIGHT          BEREFT 
         BESIDE         BESIDES            BEST          BETEEN          BETTER 
       BETWEEEN         BETWEEM         BETWEEN          BETWEN          BEWEEN 
         BISHER         BIZARRE            BOTH           BRING          BUSILY 
            BUT          BUYING            CALL            CAME             CAN 
         CANNOT            CANT           CETTE          CHAQUE          CHOSEN 
            COL            COME           COMES          COMING         COMINGS 
            CON          CONNUE      CONSIDERED           COULD         COULDNT 
            DAL            DANS             DAS            DEEM          DEEMED 
        DEEMING           DEGLI           DELLA           DELLE             DEM 
         DEPRES             DES         DESPITE             DID          DISUSE 
             DO            DOES           DOESN          DOESNT           DOING 
         DOINGS            DONE            DONT              DU             DUE 
           DULY           DURCH         DURINGS            EACH              ED 
            EIN            EINE           EINEM           EINER           EINES 
         EINIGE         EINIGER        EINNIGER          EITHER            ELLE 
           ELSE       ELSEWHERE           ENFIN          ENOUGH       ERSTWHILE 
            EST              ET             ETC            EVER           EVERY 
      EVERYBODY        EVERYDAY        EVERYONE      EVERYTHING      EVERYWHERE 
         FAITES         FINALLY          FOLLOW             FOR         FOREVER 
          FOUND            FROM            FUER             FUR         FURTHER 
      FURTHERED      FURTHERING     FURTHERMORE        FURTHERS        FURTHEST 
         FUTHER            GAVE           GEGEN             GET            GIVE 
         GIVEEN           GIVEN           GIVER           GIVES          GIVING 
          GOING            GONE             GOT             HAD          HAPPEN 
      HAPPENDED        HAPPENED       HAPPENING      HAPPENINGS         HAPPENS 
   HAPPENSTANCE          HARDLY             HAS           HASNT            HAST 
         HASTEN        HASTENED         HASTENS            HATH            HAVE 
         HAVENT          HAVING           HENCE        HERAFTER            HERE 
      HEREAFTER      HEREBEFORE          HEREIN      HERETOFORE        HEREWITH 
           HERS             HIM         HIMSELF             HIS         HITERTO 
       HITHERTO            HORS             HOW         HOWEVER             HUI 
       IDEALISE        IDEALISM              IF              IM              IN 
       INASMUCH          INDEED         INGOING         INSOFAR         INSTEAD 
        INTERIM            INTO              IS            ISNT              IT 
            ITS          ITSELF            JUST            KEEP         KEEPING 
          KEEPS            KEPT            KIND            KNEW            KNOW 
        KNOWING           KNOWS              LA             LES            LEST 
            LET            LETS            LEUR            LEUR           LEURS 
           LIKE      LIKELINESS         LIKENED          LIKENS           LIKES 
       LIKEWISE          LIKLEY            MADE            MAIS            MAKE 
          MAKES          MAKING             MAY           MAYBE        MEANTIME 
      MEANWHILE           MEINE            MEME            MERE          MERELY 
          MIGHT          MIGHTY        MOREOVER          MOSTLY            MUCH 
           MUST              MY            NACH        NACHSTEN            NEED 
         NEEDED         NEEDING        NEEDLESS      NEEDLESSLY           NEEDS 
          NEEED           NEGLI         NEITHER             NEL            NELL 
          NEVER    NEVERTHELESS   NEVERTHERLESS    NEVETHERLESS            NEXT 
         NICELY           NICHT            NONE     NONETHELESS             NOT 
        NOTHING           NOTRE NOTWITHSTANDING             NOW        NOWADAYS 
        NOWHERE        OBTAINED              OF             OFF            OFFS 
          OFTEN         OFTENLY              ON            ONCE            ONES 
        ONESELF           ONETO         ONGOING            ONLY            ONTO 
         ONWARD         ONWARDS              OR           OTHER          OTHERS 
      OTHERWISE        OTHEWISE              OU           OUGHT             OUR 
           OURS       OURSELVES             OUT     OUTSTANDING   OUTSTANDINGLY 
            OWN           OWNED           PAPER            PART         PENDANT 
        PERHAPS        PERPHAPS            PEUT          PONDER      PONDERABLE 
       POSSIBLE        POSSIBLY        PRESENTD       PRESENTED            PRIS 
         PROPOS             PUT            PUTS         PUTTING             QUE 
           QUEL        QUELQUES           QUERY        QUESTION           QUICK 
        QUICKLY           QUITE          QURREY         RACONTE          RATHER 
         REALLY            REDO         REDOING          REDONE            SAID 
           SAME             SAY          SAYING            SAYS             SEE 
           SEEM          SEEMED         SEEMING       SEEMINGLY           SEEMS 
           SEHR          SEINER            SEIT          SELDOM        SEMBLAVA 
          SHALL             SHE          SHOULD        SHOULDNT            SHOW 
         SHOWED         SHOWING           SHOWN           SHOWS           SINCE 
            SIT            SITS         SITTING              SO           SOBRE 
           SOME         SOMEDAY         SOMEHOW         SOMEONE       SOMETHING 
       SOMETIME       SOMETIMES        SOMEWHAT       SOMEWHERE        SOMTIMES 
       SOMWEHAT            SOON          SOONER            SUCH         SUGGEST 
      SUGGESTED        SUGGESTS           SUGLI           SULLA           SULLE 
           SURE          SURELY          SUREST         SURMISE        SURMISED 
           TAKE           TAKEN          TAKENS           TAKES          TAKING 
           TALE          TALLER         TALLIED         TALLIES             TEH 
           TELL           TELLS            TEND          TENDED         TENDING 
          TENDS            THAN           THANK         THANKED          THANKS 
           THAT             THE            THEE           THEIR          THEIRS 
           THEM      THEMSELVES            THEN          THENCE     THENCEFORTH 
         THERBY           THERE      THEREAFTER         THEREBY       THEREFORE 
      THEREFORM       THEREFROM         THEREIN         THEREOF         THEREON 
        THERETO       THEREWITH        THERFORE           THESE            THEY 
          THEYS            THHE            THIS        THOROUGH      THOROUGHLY 
    THOROUGHPUT         THORUGH           THOSE          THOUGH       THOUGHOUT 
        THOUGHT      THOUGHTFUL     THOUGHTLESS      THOUGHTOUT        THOUGHTS 
     THREREFORE       THROUGHLY      THROUGHOUT      THROUGHPUT     THROUGHPUTS 
       THROUGHS        THROUGHT            THRU            THUS         THUSFAR 
            TIL            TILL              TO           TODAY          TODAYS 
       TOGETHER           TOGOT        TOMORROW             TOO            TOOK 
     TREMENDOUS    TREMENDOUSLY           TREND          TRENDS            TRES 
          TRIED           TRIES            TRIP        TROUVEES     TRUSTWORTHY 
         TRUTHS             TRY          TRYING            UBER      UBIGUITOUS 
    UBIQUITIOUS      UBIQUITOUS    UBIQUITOUSLY  UBIQUITOUSNESS        UBIQUITY 
     UBIQUOTOUS            UGLY              UM              UN          UNABLE 
 UNAVAILABILITY     UNAVAILABLE         UNAWARE             UND         UNDERGO 
      UNDERGOES      UNDERGOING       UNDERGONE        UNDERGOS      UNDERNEATH 
   UNDERSTUDIED       UNDERTAKE      UNDERTAKEN      UNDERTAKES     UNDERTAKING 
   UNDERTAKINGS