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Title: DEEP K{sub s} -NEAR-INFRARED SURFACE PHOTOMETRY OF 80 DWARF IRREGULAR GALAXIES IN THE LOCAL VOLUME

Abstract

We present deep near-infrared (K{sub s}) images and surface photometry for 80 dwarf irregular galaxies (dIs) within {approx}5 Mpc of the Milky Way. The galaxy images were obtained at five different facilities between 2004 and 2006. The image reductions and surface photometry have been performed using methods specifically designed for isolating faint galaxies from the high and varying near-infrared sky level. Fifty-four of the 80 dIs have surface brightness profiles which could be fit to a hyperbolic-secant (sech) function, while the remaining profiles could be fit to the sum of a sech and a Gaussian function. From these fits, we have measured central surface brightnesses, scale lengths, and integrated magnitudes. This survey is part of a larger study of the connection between large-scale structure and the global properties of dIs, the hypothesized building-blocks of more massive galaxies.

Authors:
; ;  [1];  [2];  [3];  [4];  [5];  [6]
  1. Department of Physics and Astronomy, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3 (Canada)
  2. IPAC, California Institute of Technology, MC 220-6, Pasadena, CA 91106 (United States)
  3. Department of Astronomy, Kyoto University Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto 606-8502 (Japan)
  4. Tuorla Observatory, Department of Physics and Astronomy, University of Turku, FI-21500 Piikkioe (Finland)
  5. Instituto de Astronomia, Universidad Autonoma de Mexico, P.O. Box 439027, San Diego, CA 92143 (United States)
  6. Isaac Newton Group of Telescopes, Apartado 321, E-38700 Santa Cruz de La Palma (Spain)
Publication Date:
OSTI Identifier:
21451110
Resource Type:
Journal Article
Journal Name:
Astrophysical Journal
Additional Journal Information:
Journal Volume: 716; Journal Issue: 1; Other Information: DOI: 10.1088/0004-637X/716/1/792; Journal ID: ISSN 0004-637X
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; BRIGHTNESS; GAUSS FUNCTION; IMAGES; MILKY WAY; PHOTOMETRY; FUNCTIONS; GALAXIES; OPTICAL PROPERTIES; PHYSICAL PROPERTIES

Citation Formats

Fingerhut, Robin L, McCall, Marshall L, Argote, Mauricio, Cluver, Michelle E, Nishiyama, Shogo, Rekola, Rami T. F., Richer, Michael G, Vaduvescu, Ovidiu, and Woudt, Patrick A., E-mail: rfinger@yorku.c, E-mail: mccall@yorku.c, E-mail: argote@yorku.c, E-mail: mcluver@ipac.caltech.ed, E-mail: shogo@kusastro.kyoto-u.ac.j, E-mail: rareko@utu.f, E-mail: richer@astrosen.unam.m, E-mail: ovidiuv@ing.iac.e, E-mail: pwoudt@ast.uct.ac.z. DEEP K{sub s} -NEAR-INFRARED SURFACE PHOTOMETRY OF 80 DWARF IRREGULAR GALAXIES IN THE LOCAL VOLUME. United States: N. p., 2010. Web. doi:10.1088/0004-637X/716/1/792.
Fingerhut, Robin L, McCall, Marshall L, Argote, Mauricio, Cluver, Michelle E, Nishiyama, Shogo, Rekola, Rami T. F., Richer, Michael G, Vaduvescu, Ovidiu, & Woudt, Patrick A., E-mail: rfinger@yorku.c, E-mail: mccall@yorku.c, E-mail: argote@yorku.c, E-mail: mcluver@ipac.caltech.ed, E-mail: shogo@kusastro.kyoto-u.ac.j, E-mail: rareko@utu.f, E-mail: richer@astrosen.unam.m, E-mail: ovidiuv@ing.iac.e, E-mail: pwoudt@ast.uct.ac.z. DEEP K{sub s} -NEAR-INFRARED SURFACE PHOTOMETRY OF 80 DWARF IRREGULAR GALAXIES IN THE LOCAL VOLUME. United States. https://doi.org/10.1088/0004-637X/716/1/792
Fingerhut, Robin L, McCall, Marshall L, Argote, Mauricio, Cluver, Michelle E, Nishiyama, Shogo, Rekola, Rami T. F., Richer, Michael G, Vaduvescu, Ovidiu, and Woudt, Patrick A., E-mail: rfinger@yorku.c, E-mail: mccall@yorku.c, E-mail: argote@yorku.c, E-mail: mcluver@ipac.caltech.ed, E-mail: shogo@kusastro.kyoto-u.ac.j, E-mail: rareko@utu.f, E-mail: richer@astrosen.unam.m, E-mail: ovidiuv@ing.iac.e, E-mail: pwoudt@ast.uct.ac.z. 2010. "DEEP K{sub s} -NEAR-INFRARED SURFACE PHOTOMETRY OF 80 DWARF IRREGULAR GALAXIES IN THE LOCAL VOLUME". United States. https://doi.org/10.1088/0004-637X/716/1/792.
@article{osti_21451110,
title = {DEEP K{sub s} -NEAR-INFRARED SURFACE PHOTOMETRY OF 80 DWARF IRREGULAR GALAXIES IN THE LOCAL VOLUME},
author = {Fingerhut, Robin L and McCall, Marshall L and Argote, Mauricio and Cluver, Michelle E and Nishiyama, Shogo and Rekola, Rami T. F. and Richer, Michael G and Vaduvescu, Ovidiu and Woudt, Patrick A., E-mail: rfinger@yorku.c, E-mail: mccall@yorku.c, E-mail: argote@yorku.c, E-mail: mcluver@ipac.caltech.ed, E-mail: shogo@kusastro.kyoto-u.ac.j, E-mail: rareko@utu.f, E-mail: richer@astrosen.unam.m, E-mail: ovidiuv@ing.iac.e, E-mail: pwoudt@ast.uct.ac.z},
abstractNote = {We present deep near-infrared (K{sub s}) images and surface photometry for 80 dwarf irregular galaxies (dIs) within {approx}5 Mpc of the Milky Way. The galaxy images were obtained at five different facilities between 2004 and 2006. The image reductions and surface photometry have been performed using methods specifically designed for isolating faint galaxies from the high and varying near-infrared sky level. Fifty-four of the 80 dIs have surface brightness profiles which could be fit to a hyperbolic-secant (sech) function, while the remaining profiles could be fit to the sum of a sech and a Gaussian function. From these fits, we have measured central surface brightnesses, scale lengths, and integrated magnitudes. This survey is part of a larger study of the connection between large-scale structure and the global properties of dIs, the hypothesized building-blocks of more massive galaxies.},
doi = {10.1088/0004-637X/716/1/792},
url = {https://www.osti.gov/biblio/21451110}, journal = {Astrophysical Journal},
issn = {0004-637X},
number = 1,
volume = 716,
place = {United States},
year = {Thu Jun 10 00:00:00 EDT 2010},
month = {Thu Jun 10 00:00:00 EDT 2010}
}