WFPC2 Observations of the Cooling Flow Elliptical in Abell 1795*

Jason Pinkney; Jon Holtzman; Christopher Garasi; Alan M. Watson; John S. Gallagher III; Gilda E. Ballester; Christopher J. Burrows; Stefano Casertano; John T. Clarke; David Crisp; Robin W. Evans; Richard E. Griffiths; J. Jeff Hester; John G. Hoessel; Jeremy R. Mould; Paul A. Scowen; Karl R. Stapelfeldt; John T. Trauger; James A. Westphal

doi:10.1086/310219

WFPC2 Observations of the Cooling Flow Elliptical in Abell 1795^*

Jason Pinkney¹, Jon Holtzman¹, Christopher Garasi¹, Alan M. Watson¹, John S. Gallagher III², Gilda E. Ballester³, Christopher J. Burrows⁴, Stefano Casertano⁴, John T. Clarke³, David Crisp⁵, Robin W. Evans⁵, Richard E. Griffiths⁶, J. Jeff Hester⁷, John G. Hoessel², Jeremy R. Mould⁸, Paul A. Scowen⁷, Karl R. Stapelfeldt⁵, John T. Trauger⁵, and James A. Westphal⁹

©1996. The American Astronomical Society. All rights reserved. Printed in U.S.A.
The Astrophysical Journal, Volume 468, Number 1 Citation Jason Pinkney et al 1996 ApJ 468 L13 DOI 10.1086/310219

Download Article PDF View article

Article metrics

289 Total downloads

Permissions

Get permission to re-use this article

Author affiliations

¹ Department of Astronomy, New Mexico State University, Dept. 4500, Box 30001, Las Cruces, NM 88003

² Department of Astronomy, University of Wisconsin—Madison, 475 N. Charter Street, Madison, WI 53706

³ Department of Atmospheric, Oceanic, and Space Sciences, University of Michigan, 2455 Hayward, Ann Arbor, MI 48109

⁴ Astrophysics Division, Space Science Department, ESA and Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218

⁵ Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109

⁶ Department of Astronomy, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218

⁷ Department of Physics and Astronomy, Arizona State University, Tyler Mall, Tempe, AZ 85287

⁸ Mount Stromlo and Siding Springs Observatories, Australian National University, Private Bag, Weston Creek Post Office, ACT 2611, Australia

⁹ Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125

Dates

Received 1996 February 9
Accepted 1996 June 19

Journal RSS

Create or edit your corridor alerts

What are corridors?

Abstract

We present WFPC2 images of the core of the cooling flow cD galaxy in Abell 1795. An irregular, asymmetric dust lane extends 7 h⁻¹₇₅ kpc in projection to the north-northwest. The dust shares the morphology observed in the Hα and excess UV emission. We see both diffuse and knotty blue emission around the dust lane, especially at the ends. The dust and emission features lie on the edge of the radio lobes, suggesting star formation induced by the radio source or the deflection of the radio jets off of preexisting dust and gas. We measure an apparent R_V significantly less than 3.1, implying that the extinction law is not Galactic in the dust lane, or the presence of line emission that is proportional to the extinction. The dust mass is at least 2 × 10⁵ h₇₅⁻² M_☉ and is more likely to be 6.5 × 10⁵ h₇₅⁻² M_☉.

Export citation and abstract BibTeX RIS

Previous article in issue

Next article in issue

Footnotes

*
Based on observations with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, operated by AURA, Inc., under contract to NASA.

Please wait… references are loading.