2002ApJ...566L..63H

Query : 2002ApJ...566L..63H

2002ApJ...566L..63H - Astrophys. J., 566, L63-L65 (2002/February-3)

Type II supernovae as standardized candles.

HAMUY M. and PINTO P.A.

Abstract (from CDS):

We present evidence for a correlation between expansion velocities of the ejecta of Type II plateau supernovae and their bolometric luminosities during the plateau phase. This correlation permits one to standardize the candles and decrease the scatter in the Hubble diagram from ∼1 mag to levels of 0.4 and 0.3 mag in the V and I bands, respectively. When we restrict the sample to the eight objects that are well in the Hubble flow (cz>3000 km.s–1), the scatter drops even further, to only 0.2 mag (or 9% in distance), which is comparable to the precision yielded by Type Ia supernovae and is far better than the ``expanding photosphere method'' applied to Type II supernovae. Using SN 1987A to calibrate the Hubble diagrams, we get H0=55±12.

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Journal keyword(s): Cosmology: Distance Scale - Galaxies: General - Stars: Supernovae: General

Simbad objects: 17

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Number of rows : 17
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 1990K SN* 00 34 13.98 -27 47 45.9     14     SNII 64 1
2 SN 1992am SN* 01 25 02.76 -04 39 00.9   18.5 18.5     SNIIP 59 1
3 SN 1990E SN* 02 39 29.1 -08 08 14     15.2     SNIIP 97 1
4 SN 1999eg SN* 02 53 08.39 +25 29 24.2     17.5     SNII 18 1
5 SN 1986L SN* 04 17 29.4 -62 47 04     13.3     SNIIP 58 1
6 SN 1999em SN* 04 41 27.04 -02 51 45.2   13.79 13.7     SNIIP 727 1
7 SN 1987A SN* 05 35 27.98840 -69 16 11.1134           SNIIpec 5203 2
8 SN 1992ba SN* 05 41 47.10 -64 18 00.7     14     SNIIP 54 1
9 SN 1993A SN* 07 39 17.3 -62 03 14   18.5 18.5     SNII 23 1
10 SN 1999ca SN* 10 05 22.95 -34 12 41.0       17   SNII 25 1
11 SN 1988A SN* 12 37 43.52 +11 48 19.5     13.5     SNIIP 112 1
12 SN 1999br SN* 13 00 41.80 +02 29 45.8     17.5     SNIIPp 171 1
13 SN 1999cr SN* 13 20 18.34 -20 08 52.0     18.0     SNIIP 26 1
14 SN 2000cb SN* 16 01 32.15 +01 42 23.0     18.0     SNII 57 1
15 SN 1991al SN* 19 42 24.07 -55 06 23.5   16.0 16     SNIIP 30 1
16 SN 1992af SN* 20 30 40.25 -42 18 35.2   17.5 17.5     SNIIP 32 1
17 SN 1993S SN* 22 52 24.1 -40 18 43     17.5     SNII 22 1

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