Ki lehet számolni, hogy hány órányi
kutatómunkába "kerültek" az eddigi szupernóvák?

(Egyébként az áprilisi Meteorban lesz interjú
Vinkó Józsival).

Mzs




Krisztian Sarneczky wrote:
>
> Sziasztok!
>
> Kuli Zolivan nagyon belenyúltunk, működik a PISTA koncepciója. Ezer
> köszönek Vinkó Józsinak, aki nélkül nem sokra mennénk. Egyébként ez a
> Piszkés-tetőn felfedezett 50. szupernóva.
>
> Sry
>
>
> ---------- Forwarded message ----------
> Date: Tue,  5 Apr 2011 23:13:45 +0200 (CEST)
> From: Lucia
> To: sky@titan.physx.u-szeged.hu
> Subject: CBET 2682: 20110406 : SUPERNOVA 2011ba = PSN J08230906+1604170
>
>
>                                                    Electronic Telegram No.
> 2682
> Central Bureau for Astronomical Telegrams
> INTERNATIONAL ASTRONOMICAL UNION
> CBAT Director:  Daniel W. E. Green; Hoffman Lab 209; Harvard University;
>   20 Oxford St.; Cambridge, MA  02138; U.S.A.
> e-mail:  cbatiau@eps.harvard.edu (alternate cbat@iau.org)
> URL http://www.cbat.eps.harvard.edu/index.html
> Prepared using the Tamkin Foundation Computer Network
>
>
> SUPERNOVA 2011ba = PSN J08230906+1604170
>       K. Sarneczky, Konkoly Observatory; and Z. Kuli, Hungarian
> Astronomical
> Association, report their discovery of a possible supernova (mag 19.6) in
> 30-min co-added unfiltered CCD images (limiting mag 21.5) taken on Mar.
> 24.81
> UT with the 0.60-m Schmidt telescope at Konkoly Observatory at
> Piszkesteto,
> Hungary.  The new object is located at R.A. = 8h23m09s.06, Decl. =
> +16d04´17".0 (equinox 2000.0).  Nothing is visible at this position on a
> Sloan Digital Sky Survey image (no information given regarding bandpass,
> date, or limiting magnitude).  This object was designated PSN
> J08230906+1604170
> when posted on the Central Bureau´s TOCP webpage and is designated SN
> 2011ba
> here based on the spectroscopy reported below.  Additional unfiltered
> magnitudes for PSN J08230906+1604170 with the Schmidt telescope:  Jan.
> 3.96 UT,
> [20.5; Mar. 8.85, [21.8 (J. Kelemen and Sarneczky); 25.81, 19.6; 28.77, R
> =
> 19.5, B = 20.1 (Sarneczky and Kuli); 30.81, R = 19.6 (Sarneczky and Kuli).
>       Additional unfiltered CCD magnitudes by Joseph Brimacombe (Cairns,
> Australia) for 2011ba from images obtained remotely:  Mar. 27.456 UT, 19.9
> m(40.6-cm RCOS telescope + U9000 camera at Macedon Ranges Observatory,
> near
> Melbourne, Australia; position end figures 09s.13, 16".2); 28.151, 19.8
> (51-cm RCOS telescope + STL11K camera at New Mexico Skies Observatory,
> Mayhill,
> NM, U.S.A.; position end figures 09s.09, 16".3).  Brimacombe´s image from
> Mar.
> 28 is posted at http://www.flickr.com/photos/43846774@N02/5578391946/.
>
>       J. Vinko, University of Szeged; G. H. Marion, Harvard-Smithsonian
> Center
> for Astrophysics and University of Texas; and J. C. Wheeler, University of
> Texas, report that a spectrum of PSN J08230906+1604170 = SN 2011ba,
> obtained on
> Apr. 1.2 UT with the 9.2-m Hobby-Eberly Telescope (+ Marcario
> Low-Resolution
> Spectrograph) by J. Caldwell, shows it to be a type-Ia supernova.  The
> spectrum shows the prominent Si II 635.5-nm feature and several other
> spectral features that are characteristic of a normal type-Ia supernova at
> or
> a few days after maximum light.  According to SNID tool (Blondin and Tonry
> 2007, Ap.J. 666, 1024), the spectrum closely resembles that of SN 2001ay
> at
> three days after maximum.  The median redshift estimated from the
> supernova
> features is z = 0.144.  Adopting this redshift, the photospheric velocity
> from the blueshift of the Si II 635.5-nm feature is about 12400 km/s.
>
>
> NOTE: These ´Central Bureau Electronic Telegrams´ are sometimes
>        superseded by text appearing later in the printed IAU Circulars.
>
>                           (C) Copyright 2011 CBAT
> 2011 April 6                     (CBET 2682)              Daniel W. E.
> Green
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