2002PASP..114..284D

Query : 2002PASP..114..284D

2002PASP..114..284D - Publ. Astron. Soc. Pac., 114, 284-297 (2002/March-0)

Selection of high-z supernova candidates.

DAHLEN T. and GOOBAR A.

Abstract (from CDS):

Deep, ground-based, optical wide-field supernova searches are capable of detecting a large number of supernovae over a broad redshift range up to z∼1.5. While it is practically infeasible to obtain spectroscopic redshifts of all supernova candidates right after their discovery, we show that the magnitudes and colors of the host galaxies, as well as the supernovae, can be used to select high-z supernova candidates for subsequent spectroscopic and photometric follow-up.

Using Monte Carlo simulations we construct criteria for selecting galaxies in well-defined redshift bands. For example, with a selection criterion using B-R and R-I colors we are able to pick out potential host galaxies for which z≥0.85 with an 80% confidence level and with a selection efficiency of 64%-86%. The method was successfully tested using real observations from the Hubble Deep Field.

Similarly, we show that the magnitude and colors of the supernova discovery data can be used to constrain the redshift. With a set of cuts based on V-R and R-I in a search to mI∼25, supernovae at z∼1 can be selected in a redshift interval σz≤0.15.


Abstract Copyright: ∼

Journal keyword(s): Cosmology: Observations - Stars: Supernovae: General

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 1997ff SN* 12 36 44.10 +62 12 44.7         26.77 SNIa 67 1

Query : 2002PASP..114..284D

Basic data :
SN 1997ff -- SuperNova
Other object types: otypes_help 		SN* (2012A&A,SN)
ICRS coord. (ep=J2000) : 		12 36 44.10 +62 12 44.7 [ ] D 2008yCat.2283....0B
FK4 coord. (ep=B1950 eq=1950) : 		12 34 30.08 +62 29 14.6 [ ]
Gal coord. (ep=J2000) : 		125.90627 +54.83084 [ ]
Radial velocity / Redshift / cz : 		V(km/s) 229992 [~] / z(~) 1.755 [~] / cz 526136 [~]
   D 2004ApJ...602...12Z
Spectral type: 		SNIa C 2008yCat....1.2024B
Fluxes (1) :
I 26.77 [~] D 2008yCat.2283....0B
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Identifiers (1) :
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SN 1997ff

References (67 between 1850 and 2026) (Total 67)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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