Circumstellar Medium Interaction in SN 2018lab, A Low-luminosity Type IIP Supernova Observed with TESS

被引：14

作者：

Pearson, Jeniveve ^{[1
]}

Hosseinzadeh, Griffin ^{[1
]}

Sand, David J. ^{[1
]}

Andrews, Jennifer E. ^{[2
]}

Jencson, Jacob E. ^{[1
]}

Dong, Yize ^{[3
]}

Bostroem, K. Azalee ^{[4
]}

Valenti, S. ^{[3
]}

Janzen, Daryl ^{[5
]}

Retamal, Nicolas Meza ^{[3
]}

Lundquist, M. J. ^{[6
]}

Wyatt, Samuel ^{[1
]}

Amaro, R. C. ^{[1
]}

Burke, Jamison ^{[7
,8
]}

Howell, D. Andrew ^{[7
,8
]}

McCully, Curtis ^{[7
,8
]}

Hiramatsu, Daichi ^{[9
,10
]}

Jha, Saurabh W. ^{[11
]}

Smith, Nathan ^{[1
]}

Haislip, Joshua ^{[12
]}

Kouprianov, Vladimir ^{[12
]}

Reichart, Daniel E. ^{[12
]}

Yang, Yi ^{[13
]}

Rho, Jeonghee ^{[14
]}

机构：

[1] Univ Arizona, Steward Observ, 933 North Cherry Ave, Tucson, AZ 85721 USA

[2] Gemini Observ, 670 North Aohoku Pl, Hilo, HI 96720 USA

[3] Univ Calif Davis, Dept Phys & Astron, 1 Shields Ave, Davis, CA 95616 USA

[4] Univ Washington, Dept Astron, 3910 15th Ave NE, Seattle, WA 98195 USA

[5] Univ Saskatchewan, Dept Phys & Engn Phys, 116 Sci Pl, Saskatoon, SK S7N 5E2, Canada

[6] WM Keck Observ, 65-1120 Mamalahoa Highway, Kamuela, HI 96743 USA

[7] La Cumbres Observ, 6740 Cortona Dr,Suite 102, Goleta, CA 93117 USA

[8] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[9] Ctr Astrophys Harvard & Smithsonian, 60 Garden St, Cambridge, MA 02138 USA

[10] NSF Inst Artificial Intelligence & Fundamental In, Cambridge, MA USA

[11] Rutgers State Univ, Dept Phys & Astron, 136 Frelinghuysen Rd, Piscataway, NJ 08854 USA

[12] Univ N Carolina, Dept Phys & Astron, 120 East Cameron Ave, Chapel Hill, NC 27599 USA

[13] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA

[14] SETI Inst, 339 Bernardo Ave,Suite 200, Mountain View, CA 94043 USA

来源：

ASTROPHYSICAL JOURNAL | 2023年 / 945卷 / 02期

基金：

美国国家航空航天局;

关键词：

RED SUPERGIANT PROGENITOR; CORE-COLLAPSE SUPERNOVAE; SPIRAL GALAXIES IC-2163; FOLLOW-UP OBSERVATIONS; LIGHT-CURVES; P SUPERNOVA; MASS-LOSS; PHOTOMETRIC-OBSERVATIONS; SHOCK BREAKOUT; HYDROGEN-RICH;

D O I：

10.3847/1538-4357/acb8a9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present photometric and spectroscopic data of SN 2018lab, a low-luminosity Type IIP supernova (LLSN) with a V-band peak luminosity of -15.1 +/- 0.1 mag. SN 2018lab was discovered by the Distance Less Than 40 Mpc (DLT40) SN survey only 0.73 days post-explosion, as determined by observations from the Transiting Exoplanet Survey Satellite (TESS). TESS observations of SN 2018lab yield a densely sampled, fast-rising, early-time light curve likely powered by ejecta-circumstellar medium (CSM) interaction. The blueshifted, broadened flash feature in the earliest spectra (<2 days) of SN 2018lab provides further evidence for ejecta-CSM interaction. The early emission features in the spectra of SN 2018lab are well described by models of a red supergiant progenitor with an extended envelope and a close-in CSM. As one of the few LLSNe with observed flash features, SN 2018lab highlights the need for more early spectra to explain the diversity of the flash feature morphology of Type II SNe.

引用

页数：15

共 19 条

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