FAST Ultra-Deep Survey (FUDS): The Star Formation Histories of FUDS0 Galaxies
We present the ultraviolet, optical, and infrared counterparts of 128 galaxies detected in neutral hydrogen (H i ) in the FAST Ultra-Deep Survey (FUDS) field 0 (FUDS0). H i mass upper limits are also calculated for 134 non-detections in the field. Stellar masses ( M _* ), star formation rates (SFRs)...
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IOP Publishing
2025-01-01
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| Series: | The Astrophysical Journal Supplement Series |
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| Online Access: | https://doi.org/10.3847/1538-4365/adc262 |
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| author | Hongwei Xi Lister Staveley-Smith Bo Peng Bi-Qing For Bin Liu Dejian Ding |
| author_facet | Hongwei Xi Lister Staveley-Smith Bo Peng Bi-Qing For Bin Liu Dejian Ding |
| author_sort | Hongwei Xi |
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| description | We present the ultraviolet, optical, and infrared counterparts of 128 galaxies detected in neutral hydrogen (H i ) in the FAST Ultra-Deep Survey (FUDS) field 0 (FUDS0). H i mass upper limits are also calculated for 134 non-detections in the field. Stellar masses ( M _* ), star formation rates (SFRs), and star formation histories are computed by fitting spectral energy distributions using P ro S pect . The results show that H i -selected galaxies prefer recent long-lasting, but mild star formation activity, while H i non-detections have earlier and more intense star formation activity. Based on their distribution on the SFR versus M _* diagram, the typical evolution of H i -selected galaxies follows three distinct stages: (i) early stage: the total SFR increases, though the specific SFR decreases from 10 ^−8 to 10 ^−9 yr ^−1 ; (ii) mass accumulation stage: the SFR is steady, and stellar mass increase linearly with time; (iii) quenching stage: star formation activity quenches on a rapid timescale and at constant stellar mass. 37 non-detections are located on the star-forming main sequence, but are not detected in H i due to low sensitivity close to the field edges or close to strong radio frequency interference. Comparisons with the existing optical, optically selected H i , and H i catalogs show a good agreement with respect to measured M _* and SFR, with minor discrepancies due to selection effects. The ongoing full FUDS survey will help us better explore the evolutionary stages of H i galaxies through a larger sample. |
| format | Article |
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| issn | 0067-0049 |
| language | English |
| publishDate | 2025-01-01 |
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| spelling | doaj-art-cb7586655cdf4271a34319256bb9bec62025-08-20T02:29:03ZengIOP PublishingThe Astrophysical Journal Supplement Series0067-00492025-01-0127811510.3847/1538-4365/adc262FAST Ultra-Deep Survey (FUDS): The Star Formation Histories of FUDS0 GalaxiesHongwei Xi0https://orcid.org/0000-0001-6642-8307Lister Staveley-Smith1https://orcid.org/0000-0002-8057-0294Bo Peng2https://orcid.org/0000-0001-6956-6553Bi-Qing For3https://orcid.org/0000-0002-0196-5248Bin Liu4https://orcid.org/0000-0002-1311-8839Dejian Ding5https://orcid.org/0000-0002-7550-0187National Astronomical Observatories , Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100101, People’s Republic of China ; pb@nao.cas.cnInternational Centre for Radio Astronomy Research (ICRAR), University of Western Australia , 35 Stirling Hwy, Crawley, WA 6009, Australia ; lister.staveley-smith@uwa.edu.auNational Astronomical Observatories , Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100101, People’s Republic of China ; pb@nao.cas.cn; Department of Astronomy and Institute of Interdisciplinary Studies, Hunan Normal University , Changsha, Hunan 410081, People’s Republic of ChinaInternational Centre for Radio Astronomy Research (ICRAR), University of Western Australia , 35 Stirling Hwy, Crawley, WA 6009, Australia ; lister.staveley-smith@uwa.edu.auNational Astronomical Observatories , Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100101, People’s Republic of China ; pb@nao.cas.cnNational Astronomical Observatories , Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100101, People’s Republic of China ; pb@nao.cas.cn; School of Astronomy and Space Science, University of Chinese Academy of Sciences , No.1 Yanqihu East Road, Huairou District, Beijing, 101408, People’s Republic of ChinaWe present the ultraviolet, optical, and infrared counterparts of 128 galaxies detected in neutral hydrogen (H i ) in the FAST Ultra-Deep Survey (FUDS) field 0 (FUDS0). H i mass upper limits are also calculated for 134 non-detections in the field. Stellar masses ( M _* ), star formation rates (SFRs), and star formation histories are computed by fitting spectral energy distributions using P ro S pect . The results show that H i -selected galaxies prefer recent long-lasting, but mild star formation activity, while H i non-detections have earlier and more intense star formation activity. Based on their distribution on the SFR versus M _* diagram, the typical evolution of H i -selected galaxies follows three distinct stages: (i) early stage: the total SFR increases, though the specific SFR decreases from 10 ^−8 to 10 ^−9 yr ^−1 ; (ii) mass accumulation stage: the SFR is steady, and stellar mass increase linearly with time; (iii) quenching stage: star formation activity quenches on a rapid timescale and at constant stellar mass. 37 non-detections are located on the star-forming main sequence, but are not detected in H i due to low sensitivity close to the field edges or close to strong radio frequency interference. Comparisons with the existing optical, optically selected H i , and H i catalogs show a good agreement with respect to measured M _* and SFR, with minor discrepancies due to selection effects. The ongoing full FUDS survey will help us better explore the evolutionary stages of H i galaxies through a larger sample.https://doi.org/10.3847/1538-4365/adc262Late-type galaxiesGalaxiesHigh-redshift galaxiesGalaxy evolutionSky surveys |
| spellingShingle | Hongwei Xi Lister Staveley-Smith Bo Peng Bi-Qing For Bin Liu Dejian Ding FAST Ultra-Deep Survey (FUDS): The Star Formation Histories of FUDS0 Galaxies The Astrophysical Journal Supplement Series Late-type galaxies Galaxies High-redshift galaxies Galaxy evolution Sky surveys |
| title | FAST Ultra-Deep Survey (FUDS): The Star Formation Histories of FUDS0 Galaxies |
| title_full | FAST Ultra-Deep Survey (FUDS): The Star Formation Histories of FUDS0 Galaxies |
| title_fullStr | FAST Ultra-Deep Survey (FUDS): The Star Formation Histories of FUDS0 Galaxies |
| title_full_unstemmed | FAST Ultra-Deep Survey (FUDS): The Star Formation Histories of FUDS0 Galaxies |
| title_short | FAST Ultra-Deep Survey (FUDS): The Star Formation Histories of FUDS0 Galaxies |
| title_sort | fast ultra deep survey fuds the star formation histories of fuds0 galaxies |
| topic | Late-type galaxies Galaxies High-redshift galaxies Galaxy evolution Sky surveys |
| url | https://doi.org/10.3847/1538-4365/adc262 |
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