Ganot, Noam and Ofek, Eran O. and Gal-Yam, Avishay and Schulze, Steve and Soumagnac, Maayane T. and Morag, Jonathan and Waxman, Eli and Kulkarni, Shrinivas R. and Kasliwal, Mansi M. and Neill, James (2022) The GALEX-PTF Experiment. II. Supernova Progenitor Radius and Energetics via Shock-cooling Modeling. Astrophysical Journal, 931 (1). Art. No. 71. ISSN 0004-637X. doi:10.3847/1538-4357/ac67ef. https://resolver.caltech.edu/CaltechAUTHORS:20210204-092718925
![[img]](https://authors.library.caltech.edu/style/images/fileicons/application_pdf.png) |
PDF
- Published Version
Creative Commons Attribution. 3MB |
|
PDF
- Submitted Version
See Usage Policy. 1MB |
Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20210204-092718925
Abstract
The radius and surface composition of an exploding massive star, as well as the explosion energy per unit mass, can be measured using early ultraviolet (UV) observations of core-collapse supernovae (CC SNe). We present the results from a simultaneous Galaxy Evolution Explorer (GALEX) and Palomar Transient Factory (PTF) search for early UV emission from SNe. We analyze five CC SNe for which we obtained near-UV (NUV) measurements before the first ground-based R-band detection. We introduce SOPRANOS, a new maximum likelihood fitting tool for models with variable temporal validity windows, and use it to fit the Sapir & Waxman shock-cooling model to the data. We report four Type II SNe with progenitor radii in the range of R* ≈ 600–1100 R⊙ and a shock velocity parameter in the range of vs* ≈ 2700–6000 km s⁻¹ (E/M ≈ 2–8 × 10⁵⁰ erg/M⊙) and one Type IIb SN with R* ≈ 210 R⊙ and vs* ≈ 11,000 km s⁻¹ (E/M ≈ 1.8 × 10⁵¹ erg/M⊙). Our pilot GALEX/PTF project thus suggests that a dedicated, systematic SN survey in the NUV band, such as the wide-field UV explorer ULTRASAT mission, is a compelling method to study the properties of SN progenitors and SN energetics.
| Item Type: | Article | ||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Related URLs: |
| ||||||||||||||||||||||||||||||||||||||
| ORCID: |
| ||||||||||||||||||||||||||||||||||||||
| Additional Information: | © 2022. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Received 2020 December 5; revised 2022 March 27; accepted 2022 April 9; published 2022 May 25. We want to thank Barak Zackay for useful discussions leading to the development of the SOPRANOS formalism. We also want to thank an anonymous referee for a very helpful report. E.O.O. is grateful for the support by grants from the Israel Science Foundation, Minerva, Israeli Ministry of Technology and Science, the US-Israel Binational Science Foundation, Weizmann-UK, Weizmann-Yale, the Weizmann-Caltech grants, the Norman E. Alexander Family M. Foundation ULTRASAT Data Center Fund, Jonathan Beare, André Deloro Institute for Space and Optics Research, Schwartz/Reisman Collaborative Science Program, and the Willner Family Leadership Institute for the Weizmann Institute of Science. A.G.Y. is supported by the EU via ERC grant No. 725161, the ISF GW excellence center, an IMOS space infrastructure grant and BSF/Transformative and GIF grants, as well as the André Deloro Institute for Advanced Research in Space and Optics, The Helen Kimmel Center for Planetary Science, the Schwartz/Reisman Collaborative Science Program, and the Norman E Alexander Family M Foundation ULTRASAT Data Center Fund, Minerva and Yeda-Sela; A.G.Y. is the incumbent of the The Arlyn Imberman Professorial Chair. S.S. acknowledges support from the G.R.E.A.T research environment, funded by Vetenskapsrådet, the Swedish Research Council, project number 2016-06012. M.M.K. acknowledges generous support from the David and Lucille Packard Foundation. | ||||||||||||||||||||||||||||||||||||||
| Group: | Astronomy Department | ||||||||||||||||||||||||||||||||||||||
| Funders: |
| ||||||||||||||||||||||||||||||||||||||
| Subject Keywords: | Supernovae; Core-collapse supernovae; High energy astrophysics | ||||||||||||||||||||||||||||||||||||||
| Issue or Number: | 1 | ||||||||||||||||||||||||||||||||||||||
| Classification Code: | Unified Astronomy Thesaurus concepts: Supernovae (1668); Core-collapse supernovae (304); High energy astrophysics (739) | ||||||||||||||||||||||||||||||||||||||
| DOI: | 10.3847/1538-4357/ac67ef | ||||||||||||||||||||||||||||||||||||||
| Record Number: | CaltechAUTHORS:20210204-092718925 | ||||||||||||||||||||||||||||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20210204-092718925 | ||||||||||||||||||||||||||||||||||||||
| Official Citation: | Noam Ganot et al 2022 ApJ 931 71 | ||||||||||||||||||||||||||||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||||||||||||||||||||||||
| ID Code: | 107907 | ||||||||||||||||||||||||||||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||||||||||||||||||||||||||||
| Deposited By: | George Porter | ||||||||||||||||||||||||||||||||||||||
| Deposited On: | 05 Feb 2021 20:48 | ||||||||||||||||||||||||||||||||||||||
| Last Modified: | 30 Jun 2022 16:07 |
Repository Staff Only: item control page
