NICMOS observations of luminous & ultraluminous infrared galaxies

Evans, Aaron S. (1999) NICMOS observations of luminous & ultraluminous infrared galaxies. Astrophysics and Space Science, 266 (1). pp. 73-78. ISSN 0004-640X. doi:10.1023/A:1002685211755. https://resolver.caltech.edu/CaltechAUTHORS:20170408-133900820

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Abstract

HST NICMOS observations of a sample of 24 luminous (LIGs: L_(IR)[8-1000 μm] = 10^(11.0-11.99) L_⊙) and ultraluminous (ULIGs:L_(IR) ≳ 10^(12.0) L_⊙) infrared galaxies are presented.The observations provide, for the first time, high resolution HST imaging of the imbedded 1.1 - 2.2 μm nuclear regions of these mergers. All but one of the ULIGs are observed to have at least one compact (50-200 pc) nucleus, and more than half contain what appear to be blue star clusters. The warm infrared galaxies (i.e., the transition sources) are observed to have bright nuclei which account for most of the light of the galaxy.This, combined with the tendency for the light of ULIGs to become more centrally concentrated as a function of increasing wavelength, implies that most of their energy is generated within a region 50-200 pc across.

Item Type:

Article

Related URLs:

URL	URL Type	Description
http://dx.doi.org/10.1023/A:1002685211755	DOI	Article
https://link.springer.com/article/10.1023%2FA%3A1002685211755	Publisher	Article
http://arxiv.org/pdf/astro-ph/9903272.pdf	arXiv	Discussion Paper
http://rdcu.be/q1Pd	Publisher	Free ReadCube access

ORCID:

Author	ORCID
Evans, Aaron S.	0000-0003-2638-1334

Additional Information:

© 1999 Kluwer Academic Publishers. It is a pleasure to thank my collaborators N. Scoville, N. Dinshaw, M. Rieke, D. Hines, R. Thompson, J. Surace and the NICMOS GTO Team. This research was supported NASA grant NAG 5-3042.

Funders:

Funding Agency	Grant Number
NASA	NAG 5-3042

Issue or Number:

DOI:

10.1023/A:1002685211755

Record Number:

CaltechAUTHORS:20170408-133900820

Persistent URL:

https://resolver.caltech.edu/CaltechAUTHORS:20170408-133900820

Official Citation:

Evans, A.S. Astrophysics and Space Science (1999) 266: 73. doi:10.1023/A:1002685211755

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No commercial reproduction, distribution, display or performance rights in this work are provided.

ID Code:

75874

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CaltechAUTHORS

Deposited By:

1Science Import

Deposited On:

13 Apr 2017 20:28

Last Modified:

15 Nov 2021 16:55

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