SN 2013fs

{{Short description|Supernova located in the spiral galaxy NGC 7610}}

{{ Supernova |

| name = SN 2013fs

| image =

| caption=

| type = IIP (was IIN )

| epoch = J2000

| SNRtype =

| host = NGC 7610

| constellation = Pegasus

| ra = {{RA|23|19|44.67}}

| dec = {{DEC|+10|11|04.5}}

| gal = 089.0254 -46.5583

| discovery = October 6, 2013

| iauc =

| mag_v =

| distance = 160 Mly

| progenitor = Unknown

| progenitor_type = Red Supergiant

| b-v =

| notes = Earliest detailed observations of a supernova ever made.

}}

SN 2013fs is a supernova, located in the spiral galaxy NGC 7610, discovered by the Intermediate Palomar Transient Factory sky survey at Palomar Observatory on 6 October 2013 (and originally named iPTF 13dqy). It was discovered approximately three hours from explosion (first light) and was observed in ultraviolet and X-ray wavelengths, among others, within several hours. Optical spectra were obtained beginning at six hours from explosion, making these the earliest such detailed observations ever made of a supernova. The supernova was also independently discovered by Kōichi Itagaki on 7 October 2013.

The star that produced SN 2013fs was a red supergiant with a mass 10 times the mass of the Sun, an effective temperature of 3,500 K, a radius 607 times the size of the Sun, and no more than a few million years old when it exploded. The star was surrounded by a relatively dense shell of gas shed by the star within the year before it exploded. Radiation emitted by the supernova explosion illuminated this shell, which had a mass of approximately one-thousandth the mass of the Sun, and its outer fringe was about five times the distance of Neptune from the Sun.

References

{{reflist|refs=

{{cite journal|doi=10.1093/mnrasl/slx056|arxiv=1703.03084|title=Immediate dense circumstellar environment of supernova progenitors caused by wind acceleration: Its effect on supernova light curves|journal=Monthly Notices of the Royal Astronomical Society: Letters|volume=469|issue=1|pages=L108–L112|year=2017|last1=Moriya|first1=Takashi J|last2=Yoon|first2=Sung-Chul|last3=Gräfener|first3=Götz|last4=Blinnikov|first4=Sergei I|doi-access=free |bibcode=2017MNRAS.469L.108M|s2cid=119474899}}

{{cite web|title=Bright Supernovae 2013|url=http://www.rochesterastronomy.org/sn2013/index.html#2013fs|website=Rochester Astronomy|accessdate=15 February 2017}}

{{cite web|last1=Perkins|first1=Sid|title=Exploding Star Yields its Secrets|url=https://www.science.org/content/article/exploding-star-yields-its-secrets|website=Science|publisher=AAAS|accessdate=15 February 2017}}

{{cite journal|doi=10.1038/nphys4025|title=Confined dense circumstellar material surrounding a regular type II supernova|journal=Nature Physics|volume=13|issue=5|pages=510|year=2017|last1=Yaron|first1=O.|last2=Perley|first2=D. A.|last3=Gal-Yam|first3=A.|last4=Groh|first4=J. H.|last5=Horesh|first5=A.|last6=Ofek|first6=E. O.|last7=Kulkarni|first7=S. R.|last8=Sollerman|first8=J.|last9=Fransson|first9=C.|last10=Rubin|first10=A.|last11=Szabo|first11=P.|last12=Sapir|first12=N.|last13=Taddia|first13=F.|last14=Cenko|first14=S. B.|last15=Valenti|first15=S.|last16=Arcavi|first16=I.|last17=Howell|first17=D. A.|last18=Kasliwal|first18=M. M.|last19=Vreeswijk|first19=P. M.|last20=Khazov|first20=D.|last21=Fox|first21=O. D.|last22=Cao|first22=Y.|last23=Gnat|first23=O.|last24=Kelly|first24=P. L.|last25=Nugent|first25=P. E.|last26=Filippenko|first26=A. V.|last27=Laher|first27=R. R.|last28=Wozniak|first28=P. R.|last29=Lee|first29=W. H.|last30=Rebbapragada|first30=U. D.|display-authors=29|arxiv = 1701.02596 |bibcode = 2017NatPh..13..510Y |s2cid=29600801}}

}}

External links

[https://sne.space/sne/SN2013fs/ Light curves and spectra] {{Webarchive|url=https://web.archive.org/web/20171023011106/https://sne.space/sne/SN2013fs/ |date=2017-10-23 }} on the [https://sne.space Open Supernova Catalog] {{Webarchive|url=https://web.archive.org/web/20160303230459/https://sne.space/ |date=2016-03-03 }}

20131006

Category:Supernovae

Category:Pegasus (constellation)