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)
· arXiv e-print (arXiv:astro-ph/9501114)
· References in the article
· Citations to the Article (136) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (5)
· NED Objects (2)
· Also-Read Articles (Reads History)
· HEP/Spires Information
·
· Translate This Page
Title:
Establishing the connection between peanut-shaped bulges and galactic bars
Authors:
Kuijken, Konrad; Merrifield, Michael R.
Affiliation:
AA(Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, US), AB(Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, US)
Publication:
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 443, no. 1, p. L13-L16 (ApJL Homepage)
Publication Date:
04/1995
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
BARS, GALACTIC BULGE, GALACTIC STRUCTURE, LINE OF SIGHT, VELOCITY DISTRIBUTION, DATA REDUCTION, DYNAMIC CHARACTERISTICS, KINEMATICS, PLASMA SPECTRA, STELLAR SPECTRA
DOI:
10.1086/187824
Bibliographic Code:
1995ApJ...443L..13K

Abstract

It has been suggested that the peanut-shaped bulges seen in some edge-on disk galaxies are due to the presence of a central bar. Although bars cannot be detected photometrically in edge-on galaxies, we show that barred potentials produce a strong kinematic signature in the form of double-peaked line-of-sight velocity distributions with a characteristic 'figure-of-eight' variation with radius. We have obtained spectroscopic observations of two edge-on galaxies with peanut-shaped bulges (NGC 5746 and NGC 5965), and they reveal exactly such line-of-sight velocity distributions in both their gaseous (emission line) and their stellar (absorption line) components. These observations provide strong observational evidence that peanut-shaped bulges are a by-product of bar formation.

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)
   

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