Building on the Archives: Connecting the CN/CO Intensity Ratio with Global Galaxy Properties in Nearby U/LIRGs
We use the CN/CO intensity ratio to obtain the dense gas fraction, f _dense , for a sample of 16 ultraluminous and luminous infrared (IR) galaxies and compare f _dense with a suite of global galaxy properties. We find a significant correlation between f _dense and star formation rate calculated usin...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2025-01-01
|
| Series: | The Astrophysical Journal |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/1538-4357/adb310 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850235582546968576 |
|---|---|
| author | Blake Ledger Christine D. Wilson Osvald Klimi Núria Torres-Albà Toshiki Saito |
| author_facet | Blake Ledger Christine D. Wilson Osvald Klimi Núria Torres-Albà Toshiki Saito |
| author_sort | Blake Ledger |
| collection | DOAJ |
| description | We use the CN/CO intensity ratio to obtain the dense gas fraction, f _dense , for a sample of 16 ultraluminous and luminous infrared (IR) galaxies and compare f _dense with a suite of global galaxy properties. We find a significant correlation between f _dense and star formation rate calculated using both IR luminosities and radio continuum, although there is significant scatter in each relation. We find no trend between global or peak f _dense and merger stage. We find no correlation between global f _dense and X-ray luminosity; however, the correlation becomes significant when we measure f _dense at the location of peak X-ray emission. Our interpretation is that the dense gas is co-localized with strong X-ray emission from active galactic nuclei or strong central star formation. |
| format | Article |
| id | doaj-art-0ca929f8b46d4b35bc25eae41c00cad0 |
| institution | OA Journals |
| issn | 1538-4357 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj-art-0ca929f8b46d4b35bc25eae41c00cad02025-08-20T02:02:12ZengIOP PublishingThe Astrophysical Journal1538-43572025-01-01981211010.3847/1538-4357/adb310Building on the Archives: Connecting the CN/CO Intensity Ratio with Global Galaxy Properties in Nearby U/LIRGsBlake Ledger0https://orcid.org/0000-0003-4577-8644Christine D. Wilson1https://orcid.org/0000-0001-5817-0991Osvald Klimi2Núria Torres-Albà3https://orcid.org/0000-0003-3638-8943Toshiki Saito4https://orcid.org/0000-0002-2501-9328Department of Physics & Astronomy, University of Victoria , Finnerty Road, Victoria, British Columbia, V8P 1A1, CanadaDepartment of Physics and Astronomy, McMaster University , 1280 Main Street W., Hamilton, Ontario L8S 4M1, CanadaDepartment of Physics and Astronomy, McMaster University , 1280 Main Street W., Hamilton, Ontario L8S 4M1, CanadaDepartment of Physics and Astronomy, Clemson University , Kinard Lab of Physics, Clemson, SC 29634, USA; Department of Astronomy, University of Virginia , P.O. Box 400325, Charlottesville, VA 22904, USAFaculty of Global Interdisciplinary Science and Innovation, Shizuoka University , 836 Ohya, Suruga-ku, Shizuoka 422-8529, JapanWe use the CN/CO intensity ratio to obtain the dense gas fraction, f _dense , for a sample of 16 ultraluminous and luminous infrared (IR) galaxies and compare f _dense with a suite of global galaxy properties. We find a significant correlation between f _dense and star formation rate calculated using both IR luminosities and radio continuum, although there is significant scatter in each relation. We find no trend between global or peak f _dense and merger stage. We find no correlation between global f _dense and X-ray luminosity; however, the correlation becomes significant when we measure f _dense at the location of peak X-ray emission. Our interpretation is that the dense gas is co-localized with strong X-ray emission from active galactic nuclei or strong central star formation.https://doi.org/10.3847/1538-4357/adb310Active galaxiesInterstellar mediumUltraluminous infrared galaxiesStarburst galaxiesSeyfert galaxiesLuminous infrared galaxies |
| spellingShingle | Blake Ledger Christine D. Wilson Osvald Klimi Núria Torres-Albà Toshiki Saito Building on the Archives: Connecting the CN/CO Intensity Ratio with Global Galaxy Properties in Nearby U/LIRGs The Astrophysical Journal Active galaxies Interstellar medium Ultraluminous infrared galaxies Starburst galaxies Seyfert galaxies Luminous infrared galaxies |
| title | Building on the Archives: Connecting the CN/CO Intensity Ratio with Global Galaxy Properties in Nearby U/LIRGs |
| title_full | Building on the Archives: Connecting the CN/CO Intensity Ratio with Global Galaxy Properties in Nearby U/LIRGs |
| title_fullStr | Building on the Archives: Connecting the CN/CO Intensity Ratio with Global Galaxy Properties in Nearby U/LIRGs |
| title_full_unstemmed | Building on the Archives: Connecting the CN/CO Intensity Ratio with Global Galaxy Properties in Nearby U/LIRGs |
| title_short | Building on the Archives: Connecting the CN/CO Intensity Ratio with Global Galaxy Properties in Nearby U/LIRGs |
| title_sort | building on the archives connecting the cn co intensity ratio with global galaxy properties in nearby u lirgs |
| topic | Active galaxies Interstellar medium Ultraluminous infrared galaxies Starburst galaxies Seyfert galaxies Luminous infrared galaxies |
| url | https://doi.org/10.3847/1538-4357/adb310 |
| work_keys_str_mv | AT blakeledger buildingonthearchivesconnectingthecncointensityratiowithglobalgalaxypropertiesinnearbyulirgs AT christinedwilson buildingonthearchivesconnectingthecncointensityratiowithglobalgalaxypropertiesinnearbyulirgs AT osvaldklimi buildingonthearchivesconnectingthecncointensityratiowithglobalgalaxypropertiesinnearbyulirgs AT nuriatorresalba buildingonthearchivesconnectingthecncointensityratiowithglobalgalaxypropertiesinnearbyulirgs AT toshikisaito buildingonthearchivesconnectingthecncointensityratiowithglobalgalaxypropertiesinnearbyulirgs |