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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2501.19108 |
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| _version_ | 1866912454105104384 |
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| author | Galbany, Lluís Gutiérrez, Claudia P. Piscarreta, Lara Alburai, Alaa Ali, Noor Cross, Dane González-Bañuelos, Maider Jiménez-Palau, Cristina Kopsacheili, Maria Müller-Bravo, Tomás E. Phan, Kim Sanfeliu, Ramon Stritzinger, Maximillian Ashall, Chris Baron, Eddie Folatelli, Gastón Bersten, Melina Hoogendam, Willem Jha, Saurabh de Jaeger, Thomas Filippenko, Alexei V. Brink, Thomas G. Howell, D. Andrew Hiramatsu, Daichi |
| author_facet | Galbany, Lluís Gutiérrez, Claudia P. Piscarreta, Lara Alburai, Alaa Ali, Noor Cross, Dane González-Bañuelos, Maider Jiménez-Palau, Cristina Kopsacheili, Maria Müller-Bravo, Tomás E. Phan, Kim Sanfeliu, Ramon Stritzinger, Maximillian Ashall, Chris Baron, Eddie Folatelli, Gastón Bersten, Melina Hoogendam, Willem Jha, Saurabh de Jaeger, Thomas Filippenko, Alexei V. Brink, Thomas G. Howell, D. Andrew Hiramatsu, Daichi |
| contents | The first few hours of a supernova (SN) contain significant information about the progenitor system. The most modern wide-field surveys that scan the sky repeatedly every few days can discover all kinds of transients in those early epochs. At such times, some progenitor footprints may be visible, elucidating critical explosion parameters and helping to distinguish between leading explosion models. A dedicated spectroscopic classification programme using the optical spectrograph OSIRIS mounted on the Gran Telescopio Canarias was set up to try to obtain observations of supernovae (SNe) at those early epochs. With the time awarded, we obtained spectra of 10 SN candidates, which we present here. Half of them were thermonuclear SNe, while the other half were core-collapse SNe. Most (70\%) were observed within the first six days of the estimated explosion, with two being captured within the first 48\,hr. We present a characterization of the spectra, together with other public ancillary photometry from the Zwicky Transient Facility (ZTF) and the Asteroid Terrestrial-impact Last Alert System (ATLAS). This project shows the need for an accompanying rapid-response spectroscopic programme for existing and future deep photometric wide-field surveys located at the right longitude to be able to trigger observations in a few hours after the discovery of the SN candidate. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_19108 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Rapid follow-up observations of infant supernovae with the Gran Telescopio Canarias Galbany, Lluís Gutiérrez, Claudia P. Piscarreta, Lara Alburai, Alaa Ali, Noor Cross, Dane González-Bañuelos, Maider Jiménez-Palau, Cristina Kopsacheili, Maria Müller-Bravo, Tomás E. Phan, Kim Sanfeliu, Ramon Stritzinger, Maximillian Ashall, Chris Baron, Eddie Folatelli, Gastón Bersten, Melina Hoogendam, Willem Jha, Saurabh de Jaeger, Thomas Filippenko, Alexei V. Brink, Thomas G. Howell, D. Andrew Hiramatsu, Daichi Solar and Stellar Astrophysics Astrophysics of Galaxies High Energy Astrophysical Phenomena The first few hours of a supernova (SN) contain significant information about the progenitor system. The most modern wide-field surveys that scan the sky repeatedly every few days can discover all kinds of transients in those early epochs. At such times, some progenitor footprints may be visible, elucidating critical explosion parameters and helping to distinguish between leading explosion models. A dedicated spectroscopic classification programme using the optical spectrograph OSIRIS mounted on the Gran Telescopio Canarias was set up to try to obtain observations of supernovae (SNe) at those early epochs. With the time awarded, we obtained spectra of 10 SN candidates, which we present here. Half of them were thermonuclear SNe, while the other half were core-collapse SNe. Most (70\%) were observed within the first six days of the estimated explosion, with two being captured within the first 48\,hr. We present a characterization of the spectra, together with other public ancillary photometry from the Zwicky Transient Facility (ZTF) and the Asteroid Terrestrial-impact Last Alert System (ATLAS). This project shows the need for an accompanying rapid-response spectroscopic programme for existing and future deep photometric wide-field surveys located at the right longitude to be able to trigger observations in a few hours after the discovery of the SN candidate. |
| title | Rapid follow-up observations of infant supernovae with the Gran Telescopio Canarias |
| topic | Solar and Stellar Astrophysics Astrophysics of Galaxies High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2501.19108 |