J/AJ/107/1022 UBVRI photometry of SN 1993J (Richmond+, 1994)
UBVRI photometry of SN 1993J in M81: the first 120 days
RICHMOND M.W., TREFFERS R.R., FILIPPENKO A.V., PAIK Y., LEIBUNDGUT B.,
SCHULMAN E., COX C.V.
<Astron. J. 107, 1022 (1994)>
=1994AJ....107.1022R 1994AJ....107.1022R (SIMBAD/NED Reference)
Abstract:
We present photometry of SN 1993J in M81 (NGC 3031) in the
Johnson-Cousins UBVRI system, starting within three days of the
probable time of explosion and ending 120 days later. The reddening
along the line of sight to this supernova is uncertain - there is
evidence for small [E(B-V)∼0.08mag] and moderate [E(B-V)∼0.32mag]
values. For each value, we correct the observed fluxes for extinction
and calculate the evolution of the sum of all optical flux, which
contains roughly half of the supernova's total flux during the period
of observation. We also fit the colors to a Planck function, and
determine the temperature and total luminosity of the supernova for each
value of reddening. A peculiar Type II supernova, SN 1993J gradually
evolved spectroscopically to resemble a Type Ib in some respects. We
compare its bolometric evolution with that of the prototypical Type Ib
SN 1983N, and find the two to be similar.
Addresses:
Richmond M.W.
Department of Astrophysical Sciences, Princeton University,
Princeton, New Jersey 08544
Treffers R.R.
Filippenko A.V.
Paik Y.
Department of Astronomy, University of California, Berkeley,
California 94720
Leibundgut B.
European Southern Observatory, Karl-Schwarzschild-Strasse 2,
D-8046 Garching bei Muenchen, Germany
Schulman E.
Cox C.V.
Department of Astronomy, University of Michigan, Ann Arbor,
Michigan 48109-1090
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table.tex 153 529 LaTeX version of tables
table2 60 86 Leuschner 76-cm observations of SN 1993J
table3 58 47 Leuschner 50-cm observations of SN 1993J
table7 62 50 La Palma observations of SN 1993J
table14 54 95 Summed optical fluxes of SN 1993J
table15 45 95 Blackbody temp. and luminosity of SN 1993J
--------------------------------------------------------------------------------
Byte-per-byte Description of file: table2 table3
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 A9 --- UT UT date (Month day)
11- 20 F10.2 d JD Julian Date
22- 26 F5.2 mag Umag []? U band magnitude (1)
27 A1 --- u_Umag [:+] Uncertainty flag for U (2)
29- 33 F5.2 mag Bmag []? B band magnitude
34 A1 --- u_Bmag [:+] Uncertainty flag for B (2)
36- 40 F5.2 mag Vmag []? V band magnitude
41 A1 --- u_Vmag [:+] Uncertainty flag for V (2)
43- 47 F5.2 mag Rmag []? R band magnitude
48 A1 --- u_Rmag [:+] Uncertainty flag for R (2)
50- 54 F5.2 mag Imag []? I band magnitude
55 A1 --- u_Imag [:+] Uncertainty flag for I (2)
57- 60 A4 --- Notes [ CP?] C = cloudy, P = poor seeing
62 A1 --- Note7 [IP] I = Isaac Newton Telescope;
P = poor conditions (3)
--------------------------------------------------------------------------------
Note (1): The 76 cm telescope's U-band values do not transform well onto the
standard color system, but may at least give a qualitative idea of
the behavior of SN 1993J at near-UV wavelengths.
Note (2): ":" denotes an uncertain value, and
"+" one which has been derived using color terms from the previous
or following night.
Note (3): In table7, all data are from the 1-m Jacobus Kapteyn Telescope unless
marked I.
--------------------------------------------------------------------------------
Byte-per-byte Description of file: table14
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 F10.2 d JD Julian Date
13- 21 E9.3 mW/m2 Flux Fluxes from measured light curves
24- 32 E9.3 mW/m2 LowExt Fluxes for extinction [E(B-V)=0.08 mag]
35- 43 E9.3 mW/m2 ModExt Fluxes for extinction [E(B-V)=0.32 mag]
46- 47 A2 --- Site Observing site (1)
50- 54 A5 --- Bands Bands summed to determine fluxes
--------------------------------------------------------------------------------
Note (1): Site: LP = La Palma; KP = Kitt Peak; L = Leuschner
--------------------------------------------------------------------------------
Byte-per-byte Description of file: table15
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 F10.2 d JD Julian Date
12- 16 I5 K LowTemp Temperature from low extinction
[E(B-V)=0.08 mag]
19- 22 F4.2 10+35W LowLum Bolometric luminosity from LowTemp
24- 28 I5 K ModTemp Temperature from moderate extinction
[E(B-V)=0.32 mag]
30- 34 F5.2 10+35W ModLum Bolometric luminosity from ModTemp
37- 38 A2 --- Site Observing site (1)
41- 45 A5 --- Bands Bands used to determine luminosities
--------------------------------------------------------------------------------
Note (1): Site: LP = La Palma; KP = Kitt Peak; L = Leuschner
--------------------------------------------------------------------------------
Origin: AAS CD-ROM series, Volume 2, 1994
(End) Lee Brotzman [ADS] 20-Apr-1994, Patricia Bauer [CDS] 21-Oct-1994