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Title: 2 kiloparsec accretion disk (. ) inside a 17 kiloparsec H-alpha bar in the cooling flow cluster 2A 0335+096

Abstract

Observations of the central region of the galaxy cluster associated with 2A 0335+096, obtained in H-alpha, R, I, and b45 (4506 A with FWHM 355 A) using an 800 x 800-pixel CCD detector on the 4-m telescope at KPNO on December 27 and 30, 1986, are reported. The data are presented graphically and analyzed. Features discussed include a 17-kpc-long bar of H-alpha emission surrounded by filaments, a smaller elongated H-alpha structure (possibly an accretion disk) centered on the nucleus of the central galaxy, a secondary galaxy with a red H-alpha-bright nucleus located within the 17-kpc bar about 6 arcsec from the central-galaxy nucleus, and evidence for excess blue emission (indicating star formation at about 8 solar mass/yr in the cooling flow). From the presence of dust in the emission-line gas it is inferred that theoretical models based on preferential formation of low-mass stars may not be applicable to this object. 17 references.

Authors:
;
Publication Date:
Research Org.:
Arizona State Univ., Tempe (USA); NASA, Goddard Space Flight Center, Greenbelt, MD (USA)
OSTI Identifier:
5438368
Resource Type:
Journal Article
Journal Name:
Astrophys. J.; (United States)
Additional Journal Information:
Journal Volume: 324
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; GALAXY CLUSTERS; GALAXY NUCLEI; ACCRETION DISKS; BALMER LINES; COSMIC DUST; COSMIC X-RAY SOURCES; GALACTIC EVOLUTION; HYDROGEN IONS; INTERGALACTIC SPACE; STAR EVOLUTION; CHARGED PARTICLES; COSMIC RAY SOURCES; DUSTS; IONS; SPACE; 640105* - Astrophysics & Cosmology- Galaxies

Citation Formats

Romanishin, W, and Hintzen, P. 2 kiloparsec accretion disk (. ) inside a 17 kiloparsec H-alpha bar in the cooling flow cluster 2A 0335+096. United States: N. p., 1988. Web. doi:10.1086/185081.
Romanishin, W, & Hintzen, P. 2 kiloparsec accretion disk (. ) inside a 17 kiloparsec H-alpha bar in the cooling flow cluster 2A 0335+096. United States. https://doi.org/10.1086/185081
Romanishin, W, and Hintzen, P. 1988. "2 kiloparsec accretion disk (. ) inside a 17 kiloparsec H-alpha bar in the cooling flow cluster 2A 0335+096". United States. https://doi.org/10.1086/185081.
@article{osti_5438368,
title = {2 kiloparsec accretion disk (. ) inside a 17 kiloparsec H-alpha bar in the cooling flow cluster 2A 0335+096},
author = {Romanishin, W and Hintzen, P},
abstractNote = {Observations of the central region of the galaxy cluster associated with 2A 0335+096, obtained in H-alpha, R, I, and b45 (4506 A with FWHM 355 A) using an 800 x 800-pixel CCD detector on the 4-m telescope at KPNO on December 27 and 30, 1986, are reported. The data are presented graphically and analyzed. Features discussed include a 17-kpc-long bar of H-alpha emission surrounded by filaments, a smaller elongated H-alpha structure (possibly an accretion disk) centered on the nucleus of the central galaxy, a secondary galaxy with a red H-alpha-bright nucleus located within the 17-kpc bar about 6 arcsec from the central-galaxy nucleus, and evidence for excess blue emission (indicating star formation at about 8 solar mass/yr in the cooling flow). From the presence of dust in the emission-line gas it is inferred that theoretical models based on preferential formation of low-mass stars may not be applicable to this object. 17 references.},
doi = {10.1086/185081},
url = {https://www.osti.gov/biblio/5438368}, journal = {Astrophys. J.; (United States)},
number = ,
volume = 324,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1988},
month = {Fri Jan 01 00:00:00 EST 1988}
}