E-viri
Recenzirano
Odprti dostop
-
Jacobson-Galán, W. V.; Venkatraman, P.; Margutti, R.; Khatami, D.; Terreran, G.; Foley, R. J.; Angulo, R.; Angus, C. R.; Auchettl, K.; Blanchard, P. K.; Bobrick, A.; Bright, J. S.; Brout, D.; Chambers, K. C.; Couch, C. D.; Coulter, D. A.; Clever, K.; Davis, K. W.; de Boer, T. J. L.; DeMarchi, L.; Dodd, S. A.; Jones, D. O.; Johnson, J.; Kilpatrick, C. D.; Khetan, N.; Lai, Z.; Langeroodi, D.; Lin, C.-C.; Magnier, E. A.; Milisavljevic, D.; Perets, H. B.; Pierel, J. D. R.; Raymond, J.; Rest, S.; Rest, A.; Ridden-Harper, R.; Shen, K. J.; Siebert, M. R.; Smith, C.; Taggart, K.; Tinyanont, S.; Valdes, F.; Villar, V. A.; Wang, Q.; Yadavalli, S. K.; Zenati, Y.; Zenteno, A.
The Astrophysical journal, 06/2022, Letnik: 932, Številka: 1Journal Article
Abstract We present panchromatic observations and modeling of calcium-strong supernovae (SNe) 2021gno in the star-forming host-galaxy NGC 4165 and 2021inl in the outskirts of elliptical galaxy NGC 4923, both monitored through the Young Supernova Experiment transient survey. The light curves of both, SNe show two peaks, the former peak being derived from shock cooling emission (SCE) and/or shock interaction with circumstellar material (CSM). The primary peak in SN 2021gno is coincident with luminous, rapidly decaying X-ray emission ( L x = 5 × 10 41 erg s −1 ) detected by Swift-XRT at δ t = 1 day after explosion, this observation being the second-ever detection of X-rays from a calcium-strong transient. We interpret the X-ray emission in the context of shock interaction with CSM that extends to r < 3 × 10 14 cm. Based on X-ray modeling, we calculate a CSM mass M CSM = (0.3−1.6) × 10 −3 M ⊙ and density n = (1−4) × 10 10 cm −3 . Radio nondetections indicate a low-density environment at larger radii ( r > 10 16 cm) and mass-loss rate of M ̇ < 10 − 4 M ⊙ yr −1 . SCE modeling of both primary light-curve peaks indicates an extended-progenitor envelope mass M e = 0.02−0.05 M ⊙ and radius R e = 30−230 R ⊙ . The explosion properties suggest progenitor systems containing either a low-mass massive star or a white dwarf (WD), the former being unlikely given the lack of local star formation. Furthermore, the environments of both SNe are consistent with low-mass hybrid He/C/O WD + C/O WD mergers.
Avtor
Vnos na polico
Trajna povezava
- URL:
Faktor vpliva
Dostop do baze podatkov JCR je dovoljen samo uporabnikom iz Slovenije. Vaš trenutni IP-naslov ni na seznamu dovoljenih za dostop, zato je potrebna avtentikacija z ustreznim računom AAI.
Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
---|
Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
---|
Vir: Osebne bibliografije
in: SICRIS
To gradivo vam je dostopno v celotnem besedilu. Če kljub temu želite naročiti gradivo, kliknite gumb Nadaljuj.