The Great Observatories
is combining imaging and spectroscopic data from NASA's
space-borne observatories in a comprehensive study of over 200 of the
most luminous infrared-selected galaxies in the local Universe.
The sample consists of approximately 180 Luminous Infrared Galaxies
(LIRGs), which are systems with total infrared emission brighter than
1011 L☉ and less than
as well as over 20 Ultra-Luminous Infrared Galaxies (ULIRGs) with
luminosity of 1012 L☉ or greater.
The objects are a complete subset of the
IRAS Revised Bright Galaxy Sample
(RBGS), which comprises 629 extragalactic objects with 60-micron flux
densities above 5.24 Jy and Galactic latitude above five degrees.
The RBGS objects, all with redshifts, z < 0.088, are the brightest
60-micron sources in the extragalactic sky. The LIRGs and ULIRGs targeted in
GOALS span the full range of nuclear spectral types (type-1 and
type-2 AGN, LINERs, and starbursts) and interaction stages (major
mergers, minor mergers, and isolated galaxies). They provide an
unbiased picture of the processes responsible for enhanced infrared
emission in the local Universe, and are excellent analogs for comparisons
with infrared and sub-millimeter selected galaxies at high-redshift.
- The GOALS team was awarded a JWST ERS program to obtain MIRI, NIRCAM and NIRSPEC images and spectra of a sample
of local LIRGs selected from the GOALS sample. The title of this program is "A JWST Study of the Starburst-AGN Connection in
Merging LIRGs." A link to the abstracts of the awarded ERS programs
can be found here. More information about the GOALS ERS program will be posted here soon!
- Kirsten Larson was awarded HST Cycle-25 time for the proposal
"Clumpy Star Formation in Local LIRGS" to obtain narrow-band
P-beta imaging of 20 GOALS galaxies.
- Tanio Diaz-Santos was awarded ALMA Cycle-5 time for the proposal
"Tracking the Properties of Gas Clumps in Luminous Infrared Galaxies
Along the Complete Merger Sequence." to obtain CO(2-1) emmission
line observations of 14 GOALS galaxies.
- Jason Chu's paper presents the GOALS Herschel image atlas and
aperture photometry (2017 ApJS, 229,25). PRESS Release.
- Loreto Barcos-Muñoz's paper uses 33 GHz radio continuum
observations from the Very Large Array to estimate the size of the
energetically dominant regions in 22 LIRGS
(2017 ApJ, 843,117).
- Tanio Diaz-Santos's paper presents the GOALS Herschel/PACS
line emission survey (2017 ApJ, 846, 32). The line fluxes and AGN fractions of the sample are available here.
- Sean Linden's paper studies the formation and destruction
of star clusters in GOALS galaxies using HST imaging (2017 ApJ, 843, 91).
- Two GOALS NuSTAR Cycle-3 proposals have been awarded time. George Privon received time to observe 4 highly-obscured GOALS sources with high HCN emission and Claudio Ricci was awarded time to observe ten late-stage mergers.