WFPC2 observations of the cooling flow elliptical in Abell 1795

Jason Pinkney; Jon Holtzman; Christopher Garasi; Alan M. Watson; John S. Gallagher; 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 Pinkney, Jon Holtzman, Christopher Garasi, Alan M. Watson, John S. Gallagher, 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

Research output: Contribution to journal › Article › peer-review

35 Scopus citations

Abstract

We present WFPC2 images of the core of the cooling flow cD galaxy in Abell 1795. An irregular, asymmetric dust lane extends 7 h₇₅^-1 kpc in projection to the north-northwest. The dust shares the morphology observed in the Ha 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 X 10⁵ h₇₅^-2 M⊙ and is more likely to be 6.5 X 10₅ h₇₅^-2 M⊙.

Original language	English (US)
Pages (from-to)	L13-L16
Journal	Astrophysical Journal
Volume	468
Issue number	1 PART II
DOIs	https://doi.org/10.1086/310219
State	Published - 1996
Externally published	Yes

Keywords

Dust, extinction
Galaxies: clusters: general
Galaxies: elliptical and lenticular, cD

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/310219

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Pinkney, J., Holtzman, J., Garasi, C., Watson, A. M., Gallagher, J. S., Ballester, G. E., Burrows, C. J., Casertano, S., Clarke, J. T., Crisp, D., Evans, R. W., Griffiths, R. E., Jeff Hester, J., Hoessel, J. G., Mould, J. R., Scowen, P. A., Stapelfeldt, K. R., Trauger, J. T., & Westphal, J. A. (1996). WFPC2 observations of the cooling flow elliptical in Abell 1795. Astrophysical Journal, 468(1 PART II), L13-L16. https://doi.org/10.1086/310219

Pinkney, J, Holtzman, J, Garasi, C, Watson, AM, Gallagher, JS, Ballester, GE, Burrows, CJ, Casertano, S, Clarke, JT, Crisp, D, Evans, RW, Griffiths, RE, Jeff Hester, J, Hoessel, JG, Mould, JR, Scowen, PA, Stapelfeldt, KR, Trauger, JT & Westphal, JA 1996, 'WFPC2 observations of the cooling flow elliptical in Abell 1795', Astrophysical Journal, vol. 468, no. 1 PART II, pp. L13-L16. https://doi.org/10.1086/310219

@article{818236733e244fafb10d0fe8f36f7e03,

title = "WFPC2 observations of the cooling flow elliptical in Abell 1795",

abstract = "We present WFPC2 images of the core of the cooling flow cD galaxy in Abell 1795. An irregular, asymmetric dust lane extends 7 h75-1 kpc in projection to the north-northwest. The dust shares the morphology observed in the Ha 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 Rv 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 X 105 h75-2 M⊙ and is more likely to be 6.5 X 105 h75-2 M⊙.",

keywords = "Dust, extinction, Galaxies: clusters: general, Galaxies: elliptical and lenticular, cD",

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

note = "Funding Information: 11IRAF is distributed by the National Optical Astronomy Observatories, which is operated by the Association of Universities for Research in Astronomy, Inc. (AURA), under cooperative agreement with the National Science Foundation. Funding Information: We thank B. McNamara for providing the digitized radio image. We are grateful to R. Walterbos, and J. O. Burns for engaging discussions. We utilized the NED Database and the ADS Abstract service for our research. This work was supported in part by NASA under contract NAS7-918 to JPL.",

year = "1996",

doi = "10.1086/310219",

language = "English (US)",

volume = "468",

pages = "L13--L16",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "1 PART II",

}

TY - JOUR

T1 - WFPC2 observations of the cooling flow elliptical in Abell 1795

AU - Pinkney, Jason

AU - Holtzman, Jon

AU - Garasi, Christopher

AU - Watson, Alan M.

AU - Gallagher, John S.

AU - Ballester, Gilda E.

AU - Burrows, Christopher J.

AU - Casertano, Stefano

AU - Clarke, John T.

AU - Crisp, David

AU - Evans, Robin W.

AU - Griffiths, Richard E.

AU - Jeff Hester, J.

AU - Hoessel, John G.

AU - Mould, Jeremy R.

AU - Scowen, Paul A.

AU - Stapelfeldt, Karl R.

AU - Trauger, John T.

AU - Westphal, James A.

N1 - Funding Information: 11IRAF is distributed by the National Optical Astronomy Observatories, which is operated by the Association of Universities for Research in Astronomy, Inc. (AURA), under cooperative agreement with the National Science Foundation. Funding Information: We thank B. McNamara for providing the digitized radio image. We are grateful to R. Walterbos, and J. O. Burns for engaging discussions. We utilized the NED Database and the ADS Abstract service for our research. This work was supported in part by NASA under contract NAS7-918 to JPL.

PY - 1996

Y1 - 1996

N2 - We present WFPC2 images of the core of the cooling flow cD galaxy in Abell 1795. An irregular, asymmetric dust lane extends 7 h75-1 kpc in projection to the north-northwest. The dust shares the morphology observed in the Ha 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 Rv 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 X 105 h75-2 M⊙ and is more likely to be 6.5 X 105 h75-2 M⊙.

AB - We present WFPC2 images of the core of the cooling flow cD galaxy in Abell 1795. An irregular, asymmetric dust lane extends 7 h75-1 kpc in projection to the north-northwest. The dust shares the morphology observed in the Ha 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 Rv 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 X 105 h75-2 M⊙ and is more likely to be 6.5 X 105 h75-2 M⊙.

KW - Dust, extinction

KW - Galaxies: clusters: general

KW - Galaxies: elliptical and lenticular, cD

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U2 - 10.1086/310219

DO - 10.1086/310219

M3 - Article

AN - SCOPUS:0039704187

SN - 0004-637X

VL - 468

SP - L13-L16

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1 PART II

ER -

WFPC2 observations of the cooling flow elliptical in Abell 1795

Abstract

Keywords

ASJC Scopus subject areas

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