J/other/Nat/494.65 SN 2010mc outburst before explosion (Ofek+, 2013)
An outburst from a massive star 40 days before a supernova explosion.
Ofek E.O., Sullivan M., Cenko S.B., Kasliwal M.M., Gal-Yam A., Kulkarni S.,
Arcavi I., Bildsten L., Bloom J.S., Horesh A., Howell A., Filippenko A.V.,
Laher R., Murray D., Nakar E., Nugent P.E., Silverman M., Shaviv N.J.,
Surace J., Yaron O.
<Nature, 494, 65-67 (2013)>
=2013Natur.494...65O 2013Natur.494...65O
ADC_Keywords: Supernovae ; Photometry
Keywords: high-energy astrophysics - stars
Abstract:
Some observations suggest that very massive stars experience extreme
mass-loss episodes shortly before they explode as supernovae as do
several models. Establishing a causal connection between these
mass-loss episodes and the final explosion would provide a novel way
to study pre-supernova massive-star evolution. Here we report
observations of a mass-loss event detected 40 days before the
explosion of the type IIn supernova SN 2010mc (also known as
PTF 10tel).
Objects:
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RA (2000) DE Designation(s)
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17 21 30.68 +48 07 47.4 SN 2010mc = PTF 10tel
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tables1.dat 61 116 SN2010mc (PTF10tel) photometric measurements
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See also:
II/313 : Palomar Transient Factory (PTF) photometric catalog 1.0 (Ofek+, 2012)
Byte-by-byte Description of file: tables1.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Tel Telescope (P60, PTF, Swift/UVOT) (1)
12- 15 A4 --- Band Observed band (g, r, i, R, U UVW1 or UVW2)
17- 25 F9.4 d Time Time is measured relative to JD=2455428.722
27- 33 F7.4 d D- ?=- Lower time range in which the photometry
was obtained, Δ- (2)
35- 41 F7.4 d D+ ?=- Upper time range in which the photometry
was obtained, Δ+ (2)
43- 44 I2 --- N Number of images
46- 50 F5.2 mag mag ?=- Magnitude in Band (AB system)
52- 55 F4.2 mag e_mag ?=- rms uncertainty on mag
57- 61 F5.2 mag magl ?=- Limit magnitude
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Note (1): Origin of the photometry:
* P60 (Palomar 60-inch telescope)
* PTF (Palomar Transient Factory) magnitudes are given in the PTF
magnitude system (Ofek et al. 2012PASP..124...62O 2012PASP..124...62O;
Ofek et al. 2012PASP..124..854O 2012PASP..124..854O, Cat. II/313).
* The Swift/UVOT measurements represents the aperture magnitude at the
position of the supernova and include the host-galaxy light.
The two last UVOT measurements were taken at late times;
thus, they can be regarded as the magnitudes of the host galaxy.
Based on them, we conclude that in order to correct the early-time
measurements for the host-galaxy contamination, about 0.05mag
should be added to the SN magnitudes.
Note (2): These columns are indicated in cases where we coadded data from
several images.
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 28-Mar-2013