NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-20 T04:05:41 PDT
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For refcode 2001IAUC.7680A...1P:
Retrieve 6 NED objects in this reference.
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NED Abstract

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2001IAUC.7680A...1P Circular No. 7680 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION SUPERNOVAE 2001dh, (2001dj) and 2001dl F. Patat, European Southern Observatory; C. Contreras and J. Prieto, Universidad Catolica de Chile; and G. Altavilla, S. Benetti, E. Cappellaro, A. Pastorello and M. Turatto, Osservatorio Astronomico di Padova, report: "Spectra of three candidate supernovae were obtained on Aug. 8 using the Danish 1.5-m telescope + DFOSC (spectral range 320-900 nm, resolution 1.2 nm) at La Silla. 2001dh (IAUC 7670) is a type-II supernova, about 1 month after maximum, the spectrum being dominated by the H alpha P-Cyg line with the absorption minimum measured at 641 nm and yielding an expansion velocity of about 9000 km/s, assuming the NED recession value of 2608 km/s for the parent galaxy; other strong lines are H beta (478 nm), Fe II (513 and 497 nm) and Ca II (842 nm). 2001dj (IAUC 7674) is not a supernova but most likely a galactic variable of early-F spectral type. 2001dl (IAUC 7675) is a type-Ia supernova, its spectrum being very similar to that of SN 1994D at maximum (cf. Patat et al. 1996, Monthly Notices Roy. Astron. Soc. 278, 111); the characteristic Si II absorption is measured at 627 nm, and given the NED recession velocity of 6204 km/s for the parent galaxy, the expansion velocity is as large as 10 000 km/s." 2001 August 11 (7680) Brian G. Marsden
Retrieve 6 NED objects in this reference.
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