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PS1-10bzj: A fast, hydrogen-poor superluminous supernova in a metal-poor host galaxy

Publication ,  Journal Article
Lunnan, R; Chornock, R; Berger, E; Milisavljevic, D; Drout, M; Sanders, NE; Challis, PM; Czekala, I; Foley, RJ; Fong, W; Huber, ME; Leibler, C ...
Published in: Astrophysical Journal
July 10, 2013

We present observations and analysis of PS1-10bzj, a superluminous supernova (SLSN) discovered in the Pan-STARRS Medium Deep Survey at a redshift z = 0.650. Spectroscopically, PS1-10bzj is similar to the hydrogen-poor SLSNe 2005ap and SCP 06F6, though with a steeper rise and lower peak luminosity (Mbol ≃ -21.4 mag) than previous events. We construct a bolometric light curve, and show that while PS1-10bzj's energetics were less extreme than previous events, its luminosity still cannot be explained by radioactive nickel decay alone. We explore both a magnetar spin-down and circumstellar interaction scenario and find that either can fit the data. PS1-10bzj is located in the Extended Chandra Deep Field South and the host galaxy is imaged in a number of surveys, including with the Hubble Space Telescope. The host is a compact dwarf galaxy (MB ≈ -18 mag, diameter ≲ 800 pc), with a low stellar mass (M* ≈ 2.4 × 107 Modot;), young stellar population (τ* ≈ 5 Myr), and a star formation rate of ∼2-3 Modot;yr-1. The specific star formation rate is the highest seen in an SLSN host so far (∼100 Gyr-1). We detect the [O III] λ4363 line, and find a low metallicity: 12 + (O/H) = 7.8 ± 0.2 (≃ 0.1 Zodot;). Together, this indicates that at least some of the progenitors of SLSNe come from young, low-metallicity populations. © 2013. The American Astronomical Society. All rights reserved..

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Published In

Astrophysical Journal

DOI

EISSN

1538-4357

ISSN

0004-637X

Publication Date

July 10, 2013

Volume

771

Issue

2

Related Subject Headings

  • Astronomy & Astrophysics
  • 5109 Space sciences
  • 5107 Particle and high energy physics
  • 5101 Astronomical sciences
  • 0306 Physical Chemistry (incl. Structural)
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
 

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Lunnan, R., Chornock, R., Berger, E., Milisavljevic, D., Drout, M., Sanders, N. E., … Price, P. A. (2013). PS1-10bzj: A fast, hydrogen-poor superluminous supernova in a metal-poor host galaxy. Astrophysical Journal, 771(2). https://doi.org/10.1088/0004-637X/771/2/97
Lunnan, R., R. Chornock, E. Berger, D. Milisavljevic, M. Drout, N. E. Sanders, P. M. Challis, et al. “PS1-10bzj: A fast, hydrogen-poor superluminous supernova in a metal-poor host galaxy.” Astrophysical Journal 771, no. 2 (July 10, 2013). https://doi.org/10.1088/0004-637X/771/2/97.
Lunnan R, Chornock R, Berger E, Milisavljevic D, Drout M, Sanders NE, et al. PS1-10bzj: A fast, hydrogen-poor superluminous supernova in a metal-poor host galaxy. Astrophysical Journal. 2013 Jul 10;771(2).
Lunnan, R., et al. “PS1-10bzj: A fast, hydrogen-poor superluminous supernova in a metal-poor host galaxy.” Astrophysical Journal, vol. 771, no. 2, July 2013. Scopus, doi:10.1088/0004-637X/771/2/97.
Lunnan R, Chornock R, Berger E, Milisavljevic D, Drout M, Sanders NE, Challis PM, Czekala I, Foley RJ, Fong W, Huber ME, Kirshner RP, Leibler C, Marion GH, McCrum M, Narayan G, Rest A, Roth KC, Scolnic D, Smartt SJ, Smith K, Soderberg AM, Stubbs CW, Tonry JL, Burgett WS, Chambers KC, Kudritzki RP, Magnier EA, Price PA. PS1-10bzj: A fast, hydrogen-poor superluminous supernova in a metal-poor host galaxy. Astrophysical Journal. 2013 Jul 10;771(2).
Journal cover image

Published In

Astrophysical Journal

DOI

EISSN

1538-4357

ISSN

0004-637X

Publication Date

July 10, 2013

Volume

771

Issue

2

Related Subject Headings

  • Astronomy & Astrophysics
  • 5109 Space sciences
  • 5107 Particle and high energy physics
  • 5101 Astronomical sciences
  • 0306 Physical Chemistry (incl. Structural)
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences