GOALS-JWST: Unveiling Dusty Compact Sources in the Merging Galaxy IIZw096
We have used the Mid-InfraRed Instrument (MIRI) on the James Webb Space Telescope (JWST) to obtain the first spatially resolved, mid-infrared images of IIZw096, a merging luminous infrared galaxy (LIRG) at z = 0.036. Previous observations with the Spitzer Space Telescope suggested that the vast majo...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2022-01-01
|
| Series: | The Astrophysical Journal Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/2041-8213/ac9389 |
| _version_ | 1797694751711952896 |
|---|---|
| author | Hanae Inami Jason Surace Lee Armus Aaron S. Evans Kirsten L. Larson Loreto Barcos-Munoz Sabrina Stierwalt Joseph M. Mazzarella George C. Privon Yiqing Song Sean T. Linden Christopher C. Hayward Torsten Böker Vivian U Thomas Bohn Vassilis Charmandaris Tanio Diaz-Santos Justin H. Howell Thomas Lai Anne M. Medling Jeffrey A. Rich Susanne Aalto Philip Appleton Michael J. I. Brown Shunshi Hoshioka Kazushi Iwasawa Francisca Kemper David Law Matthew A. Malkan Jason Marshall Eric J. Murphy David Sanders Paul van der Werf |
| author_facet | Hanae Inami Jason Surace Lee Armus Aaron S. Evans Kirsten L. Larson Loreto Barcos-Munoz Sabrina Stierwalt Joseph M. Mazzarella George C. Privon Yiqing Song Sean T. Linden Christopher C. Hayward Torsten Böker Vivian U Thomas Bohn Vassilis Charmandaris Tanio Diaz-Santos Justin H. Howell Thomas Lai Anne M. Medling Jeffrey A. Rich Susanne Aalto Philip Appleton Michael J. I. Brown Shunshi Hoshioka Kazushi Iwasawa Francisca Kemper David Law Matthew A. Malkan Jason Marshall Eric J. Murphy David Sanders Paul van der Werf |
| author_sort | Hanae Inami |
| collection | DOAJ |
| description | We have used the Mid-InfraRed Instrument (MIRI) on the James Webb Space Telescope (JWST) to obtain the first spatially resolved, mid-infrared images of IIZw096, a merging luminous infrared galaxy (LIRG) at z = 0.036. Previous observations with the Spitzer Space Telescope suggested that the vast majority of the total IR luminosity ( L _IR ) of the system originated from a small region outside of the two merging nuclei. New observations with JWST/MIRI now allow an accurate measurement of the location and luminosity density of the source that is responsible for the bulk of the IR emission. We estimate that 40%–70% of the IR bolometric luminosity, or 3–5 × 10 ^11 L _⊙ , arises from a source no larger than 175 pc in radius, suggesting a luminosity density of at least 3–5 × 10 ^12 L _⊙ kpc ^−2 . In addition, we detect 11 other star-forming sources, five of which were previously unknown. The MIRI F1500W/F560W colors of most of these sources, including the source responsible for the bulk of the far-IR emission, are much redder than the nuclei of local LIRGs. These observations reveal the power of JWST to disentangle the complex regions at the hearts of merging, dusty galaxies. |
| first_indexed | 2024-03-12T03:02:21Z |
| format | Article |
| id | doaj.art-a87077e52f6f4d26a2d17168cfb45b79 |
| institution | Directory Open Access Journal |
| issn | 2041-8205 |
| language | English |
| last_indexed | 2024-03-12T03:02:21Z |
| publishDate | 2022-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal Letters |
| spelling | doaj.art-a87077e52f6f4d26a2d17168cfb45b792023-09-03T14:42:29ZengIOP PublishingThe Astrophysical Journal Letters2041-82052022-01-019401L610.3847/2041-8213/ac9389GOALS-JWST: Unveiling Dusty Compact Sources in the Merging Galaxy IIZw096Hanae Inami0https://orcid.org/0000-0003-4268-0393Jason Surace1https://orcid.org/0000-0001-7291-0087Lee Armus2https://orcid.org/0000-0003-3498-2973Aaron S. Evans3https://orcid.org/0000-0003-2638-1334Kirsten L. Larson4https://orcid.org/0000-0003-3917-6460Loreto Barcos-Munoz5https://orcid.org/0000-0003-0057-8892Sabrina Stierwalt6https://orcid.org/0000-0002-2596-8531Joseph M. Mazzarella7https://orcid.org/0000-0002-8204-8619George C. Privon8https://orcid.org/0000-0003-3474-1125Yiqing Song9https://orcid.org/0000-0002-3139-3041Sean T. Linden10https://orcid.org/0000-0002-1000-6081Christopher C. Hayward11https://orcid.org/0000-0003-4073-3236Torsten Böker12https://orcid.org/0000-0002-5666-7782Vivian U13https://orcid.org/0000-0002-1912-0024Thomas Bohn14https://orcid.org/0000-0002-4375-254XVassilis Charmandaris15https://orcid.org/0000-0002-2688-1956Tanio Diaz-Santos16https://orcid.org/0000-0003-0699-6083Justin H. Howell17https://orcid.org/0000-0001-6028-8059Thomas Lai18https://orcid.org/0000-0001-8490-6632Anne M. Medling19https://orcid.org/0000-0001-7421-2944Jeffrey A. Rich20https://orcid.org/0000-0002-5807-5078Susanne Aalto21https://orcid.org/0000-0002-5828-7660Philip Appleton22https://orcid.org/0000-0002-7607-8766Michael J. I. Brown23https://orcid.org/0000-0002-1207-9137Shunshi Hoshioka24Kazushi Iwasawa25https://orcid.org/0000-0002-4923-3281Francisca Kemper26https://orcid.org/0000-0003-2743-8240David Law27https://orcid.org/0000-0002-9402-186XMatthew A. Malkan28https://orcid.org/0000-0001-6919-1237Jason Marshall29https://orcid.org/0000-0001-7712-8465Eric J. Murphy30https://orcid.org/0000-0001-7089-7325David Sanders31https://orcid.org/0000-0002-1233-9998Paul van der Werf32https://orcid.org/0000-0001-5434-5942Hiroshima Astrophysical Science Center, Hiroshima University , 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan ; hanae@hiroshima-u.ac.jpIPAC, California Institute of Technology , 1200 East California Boulevard, Pasadena, CA 91125, USAIPAC, California Institute of Technology , 1200 East California Boulevard, Pasadena, CA 91125, USANational Radio Astronomy Observatory , 520 Edgemont Road, Charlottesville, VA 22903, USA; Department of Astronomy, University of Virginia , 530 McCormick Road, Charlottesville, VA 22903, USAAURA for the European Space Agency (ESA), Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD, 21218, USANational Radio Astronomy Observatory , 520 Edgemont Road, Charlottesville, VA 22903, USA; Department of Astronomy, University of Virginia , 530 McCormick Road, Charlottesville, VA 22903, USAOccidental College , Physics Department, 1600 Campus Road, Los Angeles, CA 90042, USAIPAC, California Institute of Technology , 1200 East California Boulevard, Pasadena, CA 91125, USANational Radio Astronomy Observatory , 520 Edgemont Road, Charlottesville, VA 22903, USA; Department of Astronomy, University of Florida , P.O. Box 112055, Gainesville, FL 32611, USANational Radio Astronomy Observatory , 520 Edgemont Road, Charlottesville, VA 22903, USA; Department of Astronomy, University of Virginia , 530 McCormick Road, Charlottesville, VA 22903, USADepartment of Astronomy, University of Massachusetts at Amherst , Amherst, MA 01003, USACenter for Computational Astrophysics, Flatiron Institute , 162 Fifth Avenue, New York, NY 10010, USAEuropean Space Agency, Space Telescope Science Institute , Baltimore, Maryland, USADepartment of Physics and Astronomy , 4129 Frederick Reines Hall, University of California, Irvine, CA 92697, USAHiroshima Astrophysical Science Center, Hiroshima University , 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan ; hanae@hiroshima-u.ac.jpDepartment of Physics, University of Crete , Heraklion, 71003, Greece; Institute of Astrophysics, Foundation for Research and Technology-Hellas (FORTH) , Heraklion, 70013, Greece; School of Sciences, European University Cyprus , Diogenes Street, Engomi, 1516 Nicosia, CyprusInstitute of Astrophysics, Foundation for Research and Technology-Hellas (FORTH) , Heraklion, 70013, Greece; School of Sciences, European University Cyprus , Diogenes Street, Engomi, 1516 Nicosia, CyprusIPAC, California Institute of Technology , 1200 East California Boulevard, Pasadena, CA 91125, USAIPAC, California Institute of Technology , 1200 East California Boulevard, Pasadena, CA 91125, USADepartment of Physics & Astronomy and Ritter Astrophysical Research Center, University of Toledo , Toledo, OH 43606, USA; ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) , AustraliaThe Observatories of the Carnegie Institution for Science , 813 Santa Barbara Street, Pasadena, CA 91101, USADepartment of Space, Earth and Environment, Chalmers University of Technology , SE-412 96 Gothenburg, SwedenIPAC, California Institute of Technology , 1200 East California Boulevard, Pasadena, CA 91125, USASchool of Physics & Astronomy, Monash University , Clayton, VIC 3800, AustraliaHiroshima Astrophysical Science Center, Hiroshima University , 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan ; hanae@hiroshima-u.ac.jpInstitut de Ciències del Cosmos (ICCUB), Universitat de Barcelona (IEEC-UB) , Martí i Franquès, 1, E-08028 Barcelona, Spain; ICREA, Pg. Lluís Companys 23, E-08010 Barcelona, SpainInstitut de Ciencies de l’Espai (ICE, CSIC) , Can Magrans, s/n, E-08193 Bellaterra, Barcelona, Spain; ICREA, Pg. Lluś Companys 23, Barcelona, Spain; Institut d’Estudis Espacials de Catalunya (IEEC) , E-08034 Barcelona, SpainSpace Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USADepartment of Physics & Astronomy , UCLA, Los Angeles, CA 90095-1547, USAGlendale Community College , 1500 N. Verdugo Road, Glendale, CA 91208, USANational Radio Astronomy Observatory , 520 Edgemont Road, Charlottesville, VA 22903, USAInstitute for Astronomy, University of Hawaii , 2680 Woodlawn Drive, Honolulu, HI 96822, USALeiden Observatory, Leiden University , NL-2300 RA Leiden, The NetherlandsWe have used the Mid-InfraRed Instrument (MIRI) on the James Webb Space Telescope (JWST) to obtain the first spatially resolved, mid-infrared images of IIZw096, a merging luminous infrared galaxy (LIRG) at z = 0.036. Previous observations with the Spitzer Space Telescope suggested that the vast majority of the total IR luminosity ( L _IR ) of the system originated from a small region outside of the two merging nuclei. New observations with JWST/MIRI now allow an accurate measurement of the location and luminosity density of the source that is responsible for the bulk of the IR emission. We estimate that 40%–70% of the IR bolometric luminosity, or 3–5 × 10 ^11 L _⊙ , arises from a source no larger than 175 pc in radius, suggesting a luminosity density of at least 3–5 × 10 ^12 L _⊙ kpc ^−2 . In addition, we detect 11 other star-forming sources, five of which were previously unknown. The MIRI F1500W/F560W colors of most of these sources, including the source responsible for the bulk of the far-IR emission, are much redder than the nuclei of local LIRGs. These observations reveal the power of JWST to disentangle the complex regions at the hearts of merging, dusty galaxies.https://doi.org/10.3847/2041-8213/ac9389Luminous infrared galaxiesGalaxy mergersInfrared astronomyInfrared sources |
| spellingShingle | Hanae Inami Jason Surace Lee Armus Aaron S. Evans Kirsten L. Larson Loreto Barcos-Munoz Sabrina Stierwalt Joseph M. Mazzarella George C. Privon Yiqing Song Sean T. Linden Christopher C. Hayward Torsten Böker Vivian U Thomas Bohn Vassilis Charmandaris Tanio Diaz-Santos Justin H. Howell Thomas Lai Anne M. Medling Jeffrey A. Rich Susanne Aalto Philip Appleton Michael J. I. Brown Shunshi Hoshioka Kazushi Iwasawa Francisca Kemper David Law Matthew A. Malkan Jason Marshall Eric J. Murphy David Sanders Paul van der Werf GOALS-JWST: Unveiling Dusty Compact Sources in the Merging Galaxy IIZw096 The Astrophysical Journal Letters Luminous infrared galaxies Galaxy mergers Infrared astronomy Infrared sources |
| title | GOALS-JWST: Unveiling Dusty Compact Sources in the Merging Galaxy IIZw096 |
| title_full | GOALS-JWST: Unveiling Dusty Compact Sources in the Merging Galaxy IIZw096 |
| title_fullStr | GOALS-JWST: Unveiling Dusty Compact Sources in the Merging Galaxy IIZw096 |
| title_full_unstemmed | GOALS-JWST: Unveiling Dusty Compact Sources in the Merging Galaxy IIZw096 |
| title_short | GOALS-JWST: Unveiling Dusty Compact Sources in the Merging Galaxy IIZw096 |
| title_sort | goals jwst unveiling dusty compact sources in the merging galaxy iizw096 |
| topic | Luminous infrared galaxies Galaxy mergers Infrared astronomy Infrared sources |
| url | https://doi.org/10.3847/2041-8213/ac9389 |
| work_keys_str_mv | AT hanaeinami goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT jasonsurace goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT leearmus goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT aaronsevans goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT kirstenllarson goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT loretobarcosmunoz goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT sabrinastierwalt goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT josephmmazzarella goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT georgecprivon goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT yiqingsong goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT seantlinden goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT christopherchayward goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT torstenboker goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT vivianu goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT thomasbohn goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT vassilischarmandaris goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT taniodiazsantos goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT justinhhowell goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT thomaslai goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT annemmedling goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT jeffreyarich goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT susanneaalto goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT philipappleton goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT michaeljibrown goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT shunshihoshioka goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT kazushiiwasawa goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT franciscakemper goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT davidlaw goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT matthewamalkan goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT jasonmarshall goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT ericjmurphy goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT davidsanders goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 AT paulvanderwerf goalsjwstunveilingdustycompactsourcesinthemerginggalaxyiizw096 |