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- SN_2011dh abstract "SN 2011dh is a supernova in the Whirlpool Galaxy (M51). On 31 May 2011 an apparent magnitude 13.5 type II supernova (the explosion of a single massive star) was detected in M51 at coordinates 13:30:05.08 +47:10:11.2. It was discovered by Tom Reiland; Thomas Griga; Amédée Riou; and Stephane Lamotte Bailey and confirmed by several sources, including the Palomar Transient Factory. A candidate progenitor has been detected in Hubble Space Telescope images at coordinates 13:30:05.119 +47:10:11.55. The progenitor may have been a highly luminous yellow supergiant with an initial mass of 18-24 solar masses. The supernova appears to have peaked near apparent magnitude 12.1 on 19 June 2011.Emission spectra from W. M. Keck Observatory, obtained by Palomar Transient Factory indicate that this is a type II supernova with a relatively blue continuum with P Cygni profiles in the Balmer series. This is a unique event, because it occurs in a galaxy that is imaged almost constantly. It is expected to be observable for northern hemisphere observers for several months.This is the third supernova to be recorded in the Whirlpool galaxy in 17 years (following SN 1994I and SN 2005cs) which is a lot for a single galaxy. The galactic supernova frequency is estimated to be around one event every 40 years.".
- SN_2011dh wikiPageExternalLink 1106.3551.
- SN_2011dh wikiPageExternalLink 1107.1876.
- SN_2011dh wikiPageExternalLink viewtopic.php?f=29&t=23856.
- SN_2011dh wikiPageExternalLink m51sn.prog.gif.
- SN_2011dh wikiPageExternalLink supernova-sn2011dh-in-m51-is.html.
- SN_2011dh wikiPageExternalLink 58956.
- SN_2011dh wikiPageExternalLink twitter-helps-astronomers-zero-in-on-m51-supernova-110606.html.
- SN_2011dh wikiPageExternalLink m51_sn_2011_1.gif.
- SN_2011dh wikiPageExternalLink 2011-06-02_M51L300002.jpg.
- SN_2011dh wikiPageID "31996609".
- SN_2011dh wikiPageRevisionID "593065271".
- SN_2011dh bV "?".
- SN_2011dh constellation Canes_Venatici.
- SN_2011dh discovery "2011-05-31".
- SN_2011dh epoch Epoch_(astronomy).
- SN_2011dh hasPhotoCollection SN_2011dh.
- SN_2011dh host Whirlpool_Galaxy.
- SN_2011dh magV "12.1".
- SN_2011dh name "SN 2011dh".
- SN_2011dh progenitor "?".
- SN_2011dh progenitorType Yellow_supergiant.
- SN_2011dh type Type_II_supernova.
- SN_2011dh subject Category:Astronomical_objects_discovered_in_2011.
- SN_2011dh comment "SN 2011dh is a supernova in the Whirlpool Galaxy (M51). On 31 May 2011 an apparent magnitude 13.5 type II supernova (the explosion of a single massive star) was detected in M51 at coordinates 13:30:05.08 +47:10:11.2. It was discovered by Tom Reiland; Thomas Griga; Amédée Riou; and Stephane Lamotte Bailey and confirmed by several sources, including the Palomar Transient Factory. A candidate progenitor has been detected in Hubble Space Telescope images at coordinates 13:30:05.119 +47:10:11.55.".
- SN_2011dh label "SN 2011dh".
- SN_2011dh label "SN 2011dh".
- SN_2011dh label "SN 2011dh".
- SN_2011dh label "SN 2011dh".
- SN_2011dh sameAs SN_2011dh.
- SN_2011dh sameAs SN_2011dh.
- SN_2011dh sameAs m.0gvqw_z.
- SN_2011dh sameAs Q3277023.
- SN_2011dh sameAs Q3277023.
- SN_2011dh wasDerivedFrom SN_2011dh?oldid=593065271.
- SN_2011dh isPrimaryTopicOf SN_2011dh.
