Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Full Refereed Journal Article (PDF/Postscript)
· Full Refereed Scanned Article (GIF)
· References in the article
· Citations to the Article (42) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (13)
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
An extremely high velocity multipolar outflow around IRAS 20050 + 2720
Authors:
Bachiller, R.; Fuente, A.; Tafalla, M.
Affiliation:
AA(Centro Astronomico de Yebes, Guadalajara, Spain), AB(Centro Astronomico de Yebes, Guadalajara, Spain), AC(Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts, US)
Publication:
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 445, no. 1, p. L51-L54 (ApJL Homepage)
Publication Date:
05/1995
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
ASTRONOMICAL SPECTROSCOPY, EMISSION SPECTRA, INFRARED ASTRONOMY, INTERSTELLAR MATTER, LINE SPECTRA, MOLECULAR FLOW, MOLECULAR GASES, SPECTRUM ANALYSIS, STAR FORMATION, CYGNUS CONSTELLATION, HIGH RESOLUTION, INFRARED ASTRONOMY SATELLITE, RADIATION SOURCES, RADIO SPECTRA, STELLAR LUMINOSITY
DOI:
10.1086/187887
Bibliographic Code:
1995ApJ...445L..51B

Abstract

We report high angular resolution maps in the CO 2 approaches 1 and CS 3 approaches 2 lines of the molecular gas around the embedded object IRAS 20050+2027. This is a 260 solar luminosity source located in the Cygnus Rift at 700 pc from the Sun. The CS data uncover a dense core of size 0.3 pc and 80 solar mass centered on the IRAS object. The CO map reveals a remarkable molecular outflow consisting of three pairs of lobes emanating from the close vicinity of the IRAS source. One of the lobe pairs is a highly collimated jet of extremely high velocity emission (LSR velocities up to +/- 70 km/s) containing molecular 'bullets'. We briefly examine different possibilties to explain the complex structure of the multipolar outflow. A single outflow appears unable to explain all the CO observations, so we suggest that two or three independent outflows emanate form different young sources embedded within the core.

Printing Options

Print whole paper
Print Page(s) through

Return 600 dpi PDF to Acrobat/Browser. Different resolutions (200 or 600 dpi), formats (Postscript, PDF, etc), page sizes (US Letter, European A4, etc), and compression (gzip,compress,none) can be set through the Printing Preferences


More Article Retrieval Options

HELP for Article Retrieval
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
  New!

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints