2009CBET.1815....1D

Query : 2009CBET.1815....1D

2009CBET.1815....1D - Central Bureau Electronic Telegrams, 1815, 1 (2009/May-0)

Supernova 2009ew.

DRAKE A.J., WILLIAMS R., DJORGOVSKI S.G., MAHABAL A., GRAHAM M.J., FATKHULLIN T.A., MOSKVITIN A.S., SOKOLOV V.V., SPIRIDONOVA O.I., VALEEV A.F., SONBAS E., PANDEY S.B., KUMAR B., ROY R., TSVETKOV D.Y., BALAM D., CATELAN M., BESHORE E.C., LARSON S.M. and CHRISTENSEN E.

Abstract (from CDS):

Further to CBET 1801, A. J. Drake, R. Williams, S. G. Djorgovski, A. Mahabal, and M. J. Graham, California Institute of Technology; T. A. Fatkhullin, A. S. Moskvitin, V. V. Sokolov, O. I. Spiridonova, and A. F. Valeev, Special Astrophysical Observatory (SAO), Russian Academy of Sciences; E. Sonbas, Cukurova University; S. B. Pandey, B. Kumar, and R. Roy, Aryabhatta Research Institute of Observational Sciences, Nainital; D. Y. Tsvetkov, Sternberg Astronomical Institute, Moscow State University; D. Balam, Dominion Astrophysical Observatory, National Research Council of Canada; M. Catelan, Pontificia Universidad Catolica de Chile; E. C. Beshore and S. M. Larson, Lunar and Planetary Laboratory, University of Arizona; and E. Christensen, Gemini Observatory, report the CRTS discovery of another supernova in unfiltered Catalina Sky Survey images:

---------------------------------------------------------------------------— SN 2009 UT R.A. (2000.0) Decl. Mag. ---------------------------------------------------------------------------— 2009ew May 16.33 16 38 59.85 +17 58 58.1 18.7 ---------------------------------------------------------------------------—

Further observations of 2009ew were taken with the Palomar 1.5-m telescope (May 23) and the Plaskett 1.82-m telescope (May 20, 21, and 25) using Gunn filters, yielding the following magnitudes: May 20.26 UT, g = 18.8, r = 18.8; May 21.28, g = 18.7, r = 18.7; May 23.47, g = 18.7, r = 18.7, i = 19.1; May 25.4, g = 18.8, r = 18.7. A confirming spectrogram (range 400-900 nm) of 2009ew was taken with the BTA 6-m telescope on May 17 UT; with the aid of the Supernova Identification code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024), 2009ew was found to be a type-Ia supernova, most similar to SN 2003du at seven days before maximum, at redshift z = 0.09.

Abstract Copyright: ∼

Journal keyword(s):

Simbad objects: 1

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Number of rows : 1

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	SN 2009ew	SN*	16 38 59.8	+17 58 58						SNIa-norm	6	1

Query : 2009CBET.1815....1D

Basic data :

SN 2009ew -- SuperNova
Other object types:	`SN* (2012A&A,SN)`
ICRS coord. (ep=J2000) :	`16 38 59.8 +17 58 58 (Optical) [ ] D 2020MNRAS.492.4325S`
FK4 coord. (ep=B1950 eq=1950) :	`16 36 46.4 +18 04 49 [ ]`
Gal coord. (ep=J2000) :	`035.6520 +37.0986 [ ]`
Spectral type:	`SNIa-norm C` `2020MNRAS.492.4325S`

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SN 2009ew CRTS CSS090516 J163900+175858

References (6 between 1850 and 2026) (Total 6)
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