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GRB 970228

	Redshift:	z =	0.6950	RA,Dec:	75.4444 11.7816
	Luminosity distance:	D =	4233.00 Mpc	Error:	0.00 arcmin
	Galactic dust extinction:	EB-V =	0.23
	Duration:	T₉₀ =	80.00 s	Error:	-

Downloads

[GIF] Image of the host from Bloom et al. (2001)
[GIF] Spectrum of the host from Bloom et al. (2001)
[PDF] Spitzer image of the host field from Svensson et al. (2010)

Host

	Stellar mass:	log(M_*/M_☉) =	8.65	Error:	0.05
	Metallicity:	log(Z/Z_☉) =	-	Error:	-
	Star formation rate:	SFR =	0.53 M_☉ yr^-1	Error:	-
	Specific star formation:	SSFR =	- Gyr^-1	Error:	-
	Optical extinction:	A_V =	-	Error:	-

Host SED

Obs. Wavelength (Å)	Flux (μJy)	References
4,360	0.112 ± 0.031	Chary et al. (2002)
5,561	0.3 ± 0.07	Christensen et al. (2004)
6,396	0.39 ± 0.07	Christensen et al. (2004)
7,988	0.6 ± 0.11	Christensen et al. (2004)
16,511	0.6 ± 0.16	Christensen et al. (2004)
21,628	0.65 ± 0.12	Christensen et al. (2004)
36,000	5.67 ± 1.1	Svensson et al. (2010)
36,000	< 3.7	Castro Cerón et al. (2010)
58,000	< 35.8	Svensson et al. (2010)

Host emission line fluxes

Emission line	Flux (10-17 cgs)	References
[O II] λ3727	2.2 ± 0.1	Bloom et al. (2001)
[Ne III] λ3869	0.2	Bloom et al. (2001)
Hβ	< 0.34	Bloom et al. (2001)
[O III] λ5007	1.55 ± 0.12	Bloom et al. (2001)

Virtual Observatory resources


	SDSS DR5 image from SkyServer	DSS image from STScI

Record created: 10/23/2006 2:35:46 PM, record modified: 9/1/2010 9:25:10 AM