The HST-Hyperion Survey: Grism Observations of a z ∼ 2.5 Protosupercluster
We present the first results and catalogs from the HST-Hyperion survey. This survey has collected 50 orbits of WFC3/F160W imaging and WFC3/G141 grism spectroscopy in the most overdense regions of the Hyperion protosupercluster at z ∼ 2.45, which are analyzed in conjunction with the adjacent 56 orbi...
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/adc252 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850275495742013440 |
|---|---|
| author | Ben Forrest Lu Shen Brian C. Lemaux Ekta Shah Olga Cucciati Roy R. Gal Finn Giddings Emmet Golden-Marx Weida Hu Kaila Ronayne Derek Sikorski Priti Staab Ricardo O. Amorín Sandro Bardelli Bianca Garilli Nimish Hathi Denise Hung Lori Lubin Debora Pelliccia Russell E. Ryan Gianni Zamorani Elena Zucca |
| author_facet | Ben Forrest Lu Shen Brian C. Lemaux Ekta Shah Olga Cucciati Roy R. Gal Finn Giddings Emmet Golden-Marx Weida Hu Kaila Ronayne Derek Sikorski Priti Staab Ricardo O. Amorín Sandro Bardelli Bianca Garilli Nimish Hathi Denise Hung Lori Lubin Debora Pelliccia Russell E. Ryan Gianni Zamorani Elena Zucca |
| author_sort | Ben Forrest |
| collection | DOAJ |
| description | We present the first results and catalogs from the HST-Hyperion survey. This survey has collected 50 orbits of WFC3/F160W imaging and WFC3/G141 grism spectroscopy in the most overdense regions of the Hyperion protosupercluster at z ∼ 2.45, which are analyzed in conjunction with the adjacent 56 orbits of WFC3/F140W imaging and WFC3/G141 grism spectroscopy from the 3D-HST survey. Sources were identified and spectra were extracted using grizli , which subsequently fit the combined grism data with object-matched photometric data from the COSMOS2020 catalog to obtain a redshift and best-fit spectral model. Each source was then visually inspected by multiple team members and quality flags were assigned. A total of 12,814 objects with m _HST ≤ 25.0 were inspected, of which 5629 (44%) have reliable redshifts from the grism data and are sensitive to emission lines at a level of ∼8.8 × 10 ^−18 erg s ^−1 cm ^−2 (1 σ ). A comparison with high-quality, ground-based spectroscopic redshifts yields a scatter of σ _NMAD = 0.0016. The resulting catalogs contain 125 confirmed members of the Hyperion structure within 2.40 < z < 2.53, with an additional 71 confirmed galaxies in projection within 2.35 < z < 2.65. The redshift, stellar population, and line flux catalogs, as well as all grism spectra, are publicly available. |
| format | Article |
| id | doaj-art-d9358b717e604bca8dc66327a2a06d43 |
| 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-d9358b717e604bca8dc66327a2a06d432025-08-20T01:50:42ZengIOP PublishingThe Astrophysical Journal1538-43572025-01-0198516110.3847/1538-4357/adc252The HST-Hyperion Survey: Grism Observations of a z ∼ 2.5 ProtosuperclusterBen Forrest0https://orcid.org/0000-0001-6003-0541Lu Shen1https://orcid.org/0000-0001-9495-7759Brian C. Lemaux2https://orcid.org/0000-0002-1428-7036Ekta Shah3https://orcid.org/0000-0001-7811-9042Olga Cucciati4https://orcid.org/0000-0002-9336-7551Roy R. Gal5https://orcid.org/0000-0001-8255-6560Finn Giddings6https://orcid.org/0009-0003-2158-1246Emmet Golden-Marx7https://orcid.org/0000-0001-5160-6713Weida Hu8https://orcid.org/0000-0003-3424-3230Kaila Ronayne9https://orcid.org/0000-0001-5749-5452Derek Sikorski10https://orcid.org/0000-0001-5796-2807Priti Staab11https://orcid.org/0000-0002-8877-4320Ricardo O. Amorín12https://orcid.org/0000-0001-5758-1000Sandro Bardelli13https://orcid.org/0000-0002-8900-0298Bianca Garilli14https://orcid.org/0000-0001-7455-8750Nimish Hathi15https://orcid.org/0000-0001-6145-5090Denise Hung16https://orcid.org/0000-0001-7523-140XLori Lubin17https://orcid.org/0000-0003-2119-8151Debora Pelliccia18https://orcid.org/0000-0002-3007-0013Russell E. Ryan19https://orcid.org/0000-0003-0894-1588Gianni Zamorani20https://orcid.org/0000-0002-2318-301XElena Zucca21https://orcid.org/0000-0002-5845-8132Department of Physics and Astronomy, University of California Davis , One Shields Avenue, Davis, CA, 95616, USA ; bforrest@ucdavis.eduDepartment of Physics and Astronomy, Texas A&M University , College Station, TX 77843, USA; George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University , College Station, TX 77843, USADepartment of Physics and Astronomy, University of California Davis , One Shields Avenue, Davis, CA, 95616, USA ; bforrest@ucdavis.edu; Gemini Observatory , NSF NOIRLab, 670 N. A’ohoku Place, Hilo, HI 96720, USADepartment of Physics and Astronomy, University of California Davis , One Shields Avenue, Davis, CA, 95616, USA ; bforrest@ucdavis.eduINAF Osservatorio di Astrofisica e Scienza dello Spazio di Bologna , Via Piero Gobetti 93/3, 40129 Bologna, ItalyInstitute for Astronomy, University of Hawai’i , 2680 Woodlawn Drive, Honolulu, HI 96822, USAInstitute for Astronomy, University of Hawai’i , 2680 Woodlawn Drive, Honolulu, HI 96822, USAINAF - Osservatorio astronomico di Padova , Vicolo Osservatorio 5, 35122 Padova, Italy; Department of Astronomy, Tsinghua University , Beijing 100084, People’s Republic of ChinaDepartment of Physics and Astronomy, Texas A&M University , College Station, TX 77843, USA; George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University , College Station, TX 77843, USADepartment of Physics and Astronomy, Texas A&M University , College Station, TX 77843, USA; George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University , College Station, TX 77843, USAInstitute for Astronomy, University of Hawai’i , 2680 Woodlawn Drive, Honolulu, HI 96822, USADepartment of Physics and Astronomy, University of California Davis , One Shields Avenue, Davis, CA, 95616, USA ; bforrest@ucdavis.eduInstituto de Astrofísica de Andalucía (CSIC) , Apartado 3004, 18080 Granada, SpainINAF Osservatorio di Astrofisica e Scienza dello Spazio di Bologna , Via Piero Gobetti 93/3, 40129 Bologna, ItalyINAF-IASF Milano , Via Alfonso Corti 12, 20133 Milan, ItalySpace Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USAGemini Observatory , NSF’s NOIRLab, 670 N. A’ohoku Place, Hilo, HI 96720, USADepartment of Physics and Astronomy, University of California Davis , One Shields Avenue, Davis, CA, 95616, USA ; bforrest@ucdavis.eduUCO/Lick Observatory , Department of Astronomy & Astrophysics, UC Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USASpace Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USAINAF Osservatorio di Astrofisica e Scienza dello Spazio di Bologna , Via Piero Gobetti 93/3, 40129 Bologna, ItalyINAF Osservatorio di Astrofisica e Scienza dello Spazio di Bologna , Via Piero Gobetti 93/3, 40129 Bologna, ItalyWe present the first results and catalogs from the HST-Hyperion survey. This survey has collected 50 orbits of WFC3/F160W imaging and WFC3/G141 grism spectroscopy in the most overdense regions of the Hyperion protosupercluster at z ∼ 2.45, which are analyzed in conjunction with the adjacent 56 orbits of WFC3/F140W imaging and WFC3/G141 grism spectroscopy from the 3D-HST survey. Sources were identified and spectra were extracted using grizli , which subsequently fit the combined grism data with object-matched photometric data from the COSMOS2020 catalog to obtain a redshift and best-fit spectral model. Each source was then visually inspected by multiple team members and quality flags were assigned. A total of 12,814 objects with m _HST ≤ 25.0 were inspected, of which 5629 (44%) have reliable redshifts from the grism data and are sensitive to emission lines at a level of ∼8.8 × 10 ^−18 erg s ^−1 cm ^−2 (1 σ ). A comparison with high-quality, ground-based spectroscopic redshifts yields a scatter of σ _NMAD = 0.0016. The resulting catalogs contain 125 confirmed members of the Hyperion structure within 2.40 < z < 2.53, with an additional 71 confirmed galaxies in projection within 2.35 < z < 2.65. The redshift, stellar population, and line flux catalogs, as well as all grism spectra, are publicly available.https://doi.org/10.3847/1538-4357/adc252ProtoclustersGalaxy evolution |
| spellingShingle | Ben Forrest Lu Shen Brian C. Lemaux Ekta Shah Olga Cucciati Roy R. Gal Finn Giddings Emmet Golden-Marx Weida Hu Kaila Ronayne Derek Sikorski Priti Staab Ricardo O. Amorín Sandro Bardelli Bianca Garilli Nimish Hathi Denise Hung Lori Lubin Debora Pelliccia Russell E. Ryan Gianni Zamorani Elena Zucca The HST-Hyperion Survey: Grism Observations of a z ∼ 2.5 Protosupercluster The Astrophysical Journal Protoclusters Galaxy evolution |
| title | The HST-Hyperion Survey: Grism Observations of a z ∼ 2.5 Protosupercluster |
| title_full | The HST-Hyperion Survey: Grism Observations of a z ∼ 2.5 Protosupercluster |
| title_fullStr | The HST-Hyperion Survey: Grism Observations of a z ∼ 2.5 Protosupercluster |
| title_full_unstemmed | The HST-Hyperion Survey: Grism Observations of a z ∼ 2.5 Protosupercluster |
| title_short | The HST-Hyperion Survey: Grism Observations of a z ∼ 2.5 Protosupercluster |
| title_sort | hst hyperion survey grism observations of a z ∼ 2 5 protosupercluster |
| topic | Protoclusters Galaxy evolution |
| url | https://doi.org/10.3847/1538-4357/adc252 |
| work_keys_str_mv | AT benforrest thehsthyperionsurveygrismobservationsofaz25protosupercluster AT lushen thehsthyperionsurveygrismobservationsofaz25protosupercluster AT brianclemaux thehsthyperionsurveygrismobservationsofaz25protosupercluster AT ektashah thehsthyperionsurveygrismobservationsofaz25protosupercluster AT olgacucciati thehsthyperionsurveygrismobservationsofaz25protosupercluster AT royrgal thehsthyperionsurveygrismobservationsofaz25protosupercluster AT finngiddings thehsthyperionsurveygrismobservationsofaz25protosupercluster AT emmetgoldenmarx thehsthyperionsurveygrismobservationsofaz25protosupercluster AT weidahu thehsthyperionsurveygrismobservationsofaz25protosupercluster AT kailaronayne thehsthyperionsurveygrismobservationsofaz25protosupercluster AT dereksikorski thehsthyperionsurveygrismobservationsofaz25protosupercluster AT pritistaab thehsthyperionsurveygrismobservationsofaz25protosupercluster AT ricardooamorin thehsthyperionsurveygrismobservationsofaz25protosupercluster AT sandrobardelli thehsthyperionsurveygrismobservationsofaz25protosupercluster AT biancagarilli thehsthyperionsurveygrismobservationsofaz25protosupercluster AT nimishhathi thehsthyperionsurveygrismobservationsofaz25protosupercluster AT denisehung thehsthyperionsurveygrismobservationsofaz25protosupercluster AT lorilubin thehsthyperionsurveygrismobservationsofaz25protosupercluster AT deborapelliccia thehsthyperionsurveygrismobservationsofaz25protosupercluster AT russelleryan thehsthyperionsurveygrismobservationsofaz25protosupercluster AT giannizamorani thehsthyperionsurveygrismobservationsofaz25protosupercluster AT elenazucca thehsthyperionsurveygrismobservationsofaz25protosupercluster AT benforrest hsthyperionsurveygrismobservationsofaz25protosupercluster AT lushen hsthyperionsurveygrismobservationsofaz25protosupercluster AT brianclemaux hsthyperionsurveygrismobservationsofaz25protosupercluster AT ektashah hsthyperionsurveygrismobservationsofaz25protosupercluster AT olgacucciati hsthyperionsurveygrismobservationsofaz25protosupercluster AT royrgal hsthyperionsurveygrismobservationsofaz25protosupercluster AT finngiddings hsthyperionsurveygrismobservationsofaz25protosupercluster AT emmetgoldenmarx hsthyperionsurveygrismobservationsofaz25protosupercluster AT weidahu hsthyperionsurveygrismobservationsofaz25protosupercluster AT kailaronayne hsthyperionsurveygrismobservationsofaz25protosupercluster AT dereksikorski hsthyperionsurveygrismobservationsofaz25protosupercluster AT pritistaab hsthyperionsurveygrismobservationsofaz25protosupercluster AT ricardooamorin hsthyperionsurveygrismobservationsofaz25protosupercluster AT sandrobardelli hsthyperionsurveygrismobservationsofaz25protosupercluster AT biancagarilli hsthyperionsurveygrismobservationsofaz25protosupercluster AT nimishhathi hsthyperionsurveygrismobservationsofaz25protosupercluster AT denisehung hsthyperionsurveygrismobservationsofaz25protosupercluster AT lorilubin hsthyperionsurveygrismobservationsofaz25protosupercluster AT deborapelliccia hsthyperionsurveygrismobservationsofaz25protosupercluster AT russelleryan hsthyperionsurveygrismobservationsofaz25protosupercluster AT giannizamorani hsthyperionsurveygrismobservationsofaz25protosupercluster AT elenazucca hsthyperionsurveygrismobservationsofaz25protosupercluster |