| Description |
We propose to obtain high-quality, PACS (70, 100, 160 micron) and SPIRE
(250, 360, 520 micron) images of a complete sample of 201 local (z<0.08)
luminous infrared galaxies (LIRGs) from the Great Observatories All-sky
LIRG Survey (GOALS). These systems are primarily interacting or merging
disk galaxies undergoing enhanced star formation and AGN activity, and
represent an important evolutionary phase in the lives of massive galaxies.
Herschel will measure a critical wavelength range of the FIR/submm spectral
energy distribution (SED), which will enable accurate determinations of
bolometric luminosities, dust temperatures, IR surface brightness and
star-formation rates within the GOALS targets on spatial scales of 2-5kpc.
The high-resolution PACS data will better resolve binary nuclear regions,
disks, and tidal bridges and tails of colliding galaxies at different interaction
stages. SPIRE will probe the hidden cold component of the ISM and will
constrain the total amount of gas and dust available to fuel the starburst
and AGN activity. Studies of the FIR-submm SEDs will allow us to derive
the relative amounts of warm and cold dust along the merger sequence.
The proximity, size, and completeness of the GOALS sample makes it
well suited for studying the full range of infrared properties for LIRGs as
a function of dynamical age, infrared luminosity, spectral type and merger
phase. Finally, this Herschel program will provide crucial statistical results
for LIRGs and ULIRGs that will enable researchers to understand high-
redshift infrared galaxies in the context of local, well-resolved objects. |
| Publication |
Molecular gas and dust properties of galaxies from the Great Observatories All-sky LIRG Survey . Herrero-Illana R. et al. . Astronomy and Astrophysics . null . null . 2019A&A...628A..71H ,
Low-frequency Radio Continuum Imaging and SED Modeling of 11 LIRGs: Radio-only and FUV to Radio Bands . Dey Subhrata et al. . The Astrophysical Journal . null . null . 2022ApJ...938..152D ,
The Great Observatories All-Sky LIRG Survey: Herschel Image Atlas and Aperture Photometry . Chu Jason K. et al. . The Astrophysical Journal Supplement Series, Volume 229, Issue 2, article id. 25, 23 pp. (2017). . 229 . 10.3847\/1538-4365\/aa5d15 . 2017ApJS..229...25C ,
A Herschel Space Observatory Spectral Line Survey of Local Luminous Infrared Galaxies from 194 to 671 Microns . Lu Nanyao et al. . The Astrophysical Journal Supplement Series, Volume 230, Issue 1, article id. 1, 34 pp. (2017). . 230 . 10.3847\/1538-4365\/aa6476 . 2017ApJS..230....1L ,
Interstellar Medium and Star Formation of Starburst Galaxies on the Merger Sequence . Shangguan Jinyi et al. . The Astrophysical Journal, Volume 870, Issue 2, article id. 104, 18 pp. (2019). . 870 . 10.3847\/1538-4357\/aaf21a . 2019ApJ...870..104S ,
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