The First Systematic Study of Type Ibc Supernova Multi-band Light Curves
We present detailed optical photometry for 25 Type Ibc supernovae (SNe Ibc) within d 150 Mpc obtained with the robotic Palomar 60 inch telescope in 2004-2007. This study represents the first uniform, systematic, and statistical sample of multi-band SNe Ibc light curves available to date. We correct...
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| creator | Drout, Maria R Soderberg, Alicia M Gal-Yam, Avishay Cenko, S. Bradley Fox, Derek B Leonard, Douglas C Sand, David J Moon, Dae-Sik Arcavi, Iair Green, Yoav |
| description | We present detailed optical photometry for 25 Type Ibc supernovae (SNe Ibc) within d 150 Mpc obtained with the robotic Palomar 60 inch telescope in 2004-2007. This study represents the first uniform, systematic, and statistical sample of multi-band SNe Ibc light curves available to date. We correct the light curves for host galaxy extinction using a new technique based on the photometric color evolution, namely, we show that the (V -- R) color of extinction-corrected SNe Ibc at Delta *Dt 10 days after V-band maximum is tightly distributed, (V -- R) V10 = 0.26 ? 0.06 mag. Using this technique, we find that SNe Ibc typically suffer from significant host galaxy extinction, E(B -- V) 0.4 mag. A comparison of the extinction-corrected light curves for helium-rich (Type Ib) and helium-poor (Type Ic) SNe reveals that they are statistically indistinguishable, both in luminosity and decline rate. We report peak absolute magnitudes of MR = --17.9 ? 0.9 mag and MR = --18.3 ? 0.6 mag for SNe Ib and Ic, respectively. Focusing on the broad-lined (BL) SNe Ic, we find that they are more luminous than the normal SNe Ibc sample, MR = --19.0 ? 1.1 mag, with a probability of only 1.6% that they are drawn from the same population of explosions. By comparing the peak absolute magnitudes of SNe Ic-BL with those inferred for local engine-driven explosions (GRB-SN 1998bw, XRF-SN 2006aj, and SN 2009bb) we find a 25% probability that relativistic SNe are drawn from the overall SNe Ic-BL population. Finally, we fit analytic models to the light curves to derive typical 56Ni masses of M Ni 0.2 and 0.5 M for SNe Ibc and SNe Ic-BL, respectively. With reasonable assumptions for the photospheric velocities, we further extract kinetic energy and ejecta mass values of M ej 2 M and EK 1051 erg for SNe Ibc, while for SNe Ic-BL we find higher values, M ej 5 M and EK 1052 erg. We discuss the implications for the progenitors of SNe Ibc and their relation to those of engine-driven explosions. |
| doi_str_mv | 10.1088/0004-637X/741/2/97 |
| format | Article |
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Bradley ; Fox, Derek B ; Leonard, Douglas C ; Sand, David J ; Moon, Dae-Sik ; Arcavi, Iair ; Green, Yoav</creator><creatorcontrib>Drout, Maria R ; Soderberg, Alicia M ; Gal-Yam, Avishay ; Cenko, S. Bradley ; Fox, Derek B ; Leonard, Douglas C ; Sand, David J ; Moon, Dae-Sik ; Arcavi, Iair ; Green, Yoav</creatorcontrib><description>We present detailed optical photometry for 25 Type Ibc supernovae (SNe Ibc) within d 150 Mpc obtained with the robotic Palomar 60 inch telescope in 2004-2007. This study represents the first uniform, systematic, and statistical sample of multi-band SNe Ibc light curves available to date. We correct the light curves for host galaxy extinction using a new technique based on the photometric color evolution, namely, we show that the (V -- R) color of extinction-corrected SNe Ibc at Delta *Dt 10 days after V-band maximum is tightly distributed, (V -- R) V10 = 0.26 ? 0.06 mag. Using this technique, we find that SNe Ibc typically suffer from significant host galaxy extinction, E(B -- V) 0.4 mag. A comparison of the extinction-corrected light curves for helium-rich (Type Ib) and helium-poor (Type Ic) SNe reveals that they are statistically indistinguishable, both in luminosity and decline rate. We report peak absolute magnitudes of MR = --17.9 ? 0.9 mag and MR = --18.3 ? 0.6 mag for SNe Ib and Ic, respectively. Focusing on the broad-lined (BL) SNe Ic, we find that they are more luminous than the normal SNe Ibc sample, MR = --19.0 ? 1.1 mag, with a probability of only 1.6% that they are drawn from the same population of explosions. By comparing the peak absolute magnitudes of SNe Ic-BL with those inferred for local engine-driven explosions (GRB-SN 1998bw, XRF-SN 2006aj, and SN 2009bb) we find a 25% probability that relativistic SNe are drawn from the overall SNe Ic-BL population. Finally, we fit analytic models to the light curves to derive typical 56Ni masses of M Ni 0.2 and 0.5 M for SNe Ibc and SNe Ic-BL, respectively. With reasonable assumptions for the photospheric velocities, we further extract kinetic energy and ejecta mass values of M ej 2 M and EK 1051 erg for SNe Ibc, while for SNe Ic-BL we find higher values, M ej 5 M and EK 1052 erg. 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Bradley</creatorcontrib><creatorcontrib>Fox, Derek B</creatorcontrib><creatorcontrib>Leonard, Douglas C</creatorcontrib><creatorcontrib>Sand, David J</creatorcontrib><creatorcontrib>Moon, Dae-Sik</creatorcontrib><creatorcontrib>Arcavi, Iair</creatorcontrib><creatorcontrib>Green, Yoav</creatorcontrib><title>The First Systematic Study of Type Ibc Supernova Multi-band Light Curves</title><title>The Astrophysical journal</title><description>We present detailed optical photometry for 25 Type Ibc supernovae (SNe Ibc) within d 150 Mpc obtained with the robotic Palomar 60 inch telescope in 2004-2007. This study represents the first uniform, systematic, and statistical sample of multi-band SNe Ibc light curves available to date. We correct the light curves for host galaxy extinction using a new technique based on the photometric color evolution, namely, we show that the (V -- R) color of extinction-corrected SNe Ibc at Delta *Dt 10 days after V-band maximum is tightly distributed, (V -- R) V10 = 0.26 ? 0.06 mag. Using this technique, we find that SNe Ibc typically suffer from significant host galaxy extinction, E(B -- V) 0.4 mag. A comparison of the extinction-corrected light curves for helium-rich (Type Ib) and helium-poor (Type Ic) SNe reveals that they are statistically indistinguishable, both in luminosity and decline rate. We report peak absolute magnitudes of MR = --17.9 ? 0.9 mag and MR = --18.3 ? 0.6 mag for SNe Ib and Ic, respectively. Focusing on the broad-lined (BL) SNe Ic, we find that they are more luminous than the normal SNe Ibc sample, MR = --19.0 ? 1.1 mag, with a probability of only 1.6% that they are drawn from the same population of explosions. By comparing the peak absolute magnitudes of SNe Ic-BL with those inferred for local engine-driven explosions (GRB-SN 1998bw, XRF-SN 2006aj, and SN 2009bb) we find a 25% probability that relativistic SNe are drawn from the overall SNe Ic-BL population. Finally, we fit analytic models to the light curves to derive typical 56Ni masses of M Ni 0.2 and 0.5 M for SNe Ibc and SNe Ic-BL, respectively. With reasonable assumptions for the photospheric velocities, we further extract kinetic energy and ejecta mass values of M ej 2 M and EK 1051 erg for SNe Ibc, while for SNe Ic-BL we find higher values, M ej 5 M and EK 1052 erg. 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Bradley</au><au>Fox, Derek B</au><au>Leonard, Douglas C</au><au>Sand, David J</au><au>Moon, Dae-Sik</au><au>Arcavi, Iair</au><au>Green, Yoav</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The First Systematic Study of Type Ibc Supernova Multi-band Light Curves</atitle><jtitle>The Astrophysical journal</jtitle><date>2011-11-10</date><risdate>2011</risdate><volume>741</volume><issue>2</issue><spage>97</spage><epage>jQuery1323901833426='48'</epage><pages>97-jQuery1323901833426='48'</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><coden>ASJOAB</coden><abstract>We present detailed optical photometry for 25 Type Ibc supernovae (SNe Ibc) within d 150 Mpc obtained with the robotic Palomar 60 inch telescope in 2004-2007. This study represents the first uniform, systematic, and statistical sample of multi-band SNe Ibc light curves available to date. We correct the light curves for host galaxy extinction using a new technique based on the photometric color evolution, namely, we show that the (V -- R) color of extinction-corrected SNe Ibc at Delta *Dt 10 days after V-band maximum is tightly distributed, (V -- R) V10 = 0.26 ? 0.06 mag. Using this technique, we find that SNe Ibc typically suffer from significant host galaxy extinction, E(B -- V) 0.4 mag. A comparison of the extinction-corrected light curves for helium-rich (Type Ib) and helium-poor (Type Ic) SNe reveals that they are statistically indistinguishable, both in luminosity and decline rate. We report peak absolute magnitudes of MR = --17.9 ? 0.9 mag and MR = --18.3 ? 0.6 mag for SNe Ib and Ic, respectively. Focusing on the broad-lined (BL) SNe Ic, we find that they are more luminous than the normal SNe Ibc sample, MR = --19.0 ? 1.1 mag, with a probability of only 1.6% that they are drawn from the same population of explosions. By comparing the peak absolute magnitudes of SNe Ic-BL with those inferred for local engine-driven explosions (GRB-SN 1998bw, XRF-SN 2006aj, and SN 2009bb) we find a 25% probability that relativistic SNe are drawn from the overall SNe Ic-BL population. Finally, we fit analytic models to the light curves to derive typical 56Ni masses of M Ni 0.2 and 0.5 M for SNe Ibc and SNe Ic-BL, respectively. With reasonable assumptions for the photospheric velocities, we further extract kinetic energy and ejecta mass values of M ej 2 M and EK 1051 erg for SNe Ibc, while for SNe Ic-BL we find higher values, M ej 5 M and EK 1052 erg. We discuss the implications for the progenitors of SNe Ibc and their relation to those of engine-driven explosions.</abstract><cop>Bristol</cop><pub>IOP Publishing</pub><doi>10.1088/0004-637X/741/2/97</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Astronomy Color Earth, ocean, space Exact sciences and technology Explosions Extinction Galaxies Photometry Samples Statistical analysis Statistical methods |
| title | The First Systematic Study of Type Ibc Supernova Multi-band Light Curves |
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