SN 2007uy

SN 2007uy
Event typeSupernova
Type Ib[1]
DateDecember 31, 2007[2]
ConstellationLynx
Right ascension09h 09m 35.28s[2]
Declination+33° 07′ 09.2″[2]
EpochJ2000
Galactic coordinatesl = 191.58°, b = +42.2°[2]
Distance96.2 ± 5.9 Mly (29.5 ± 1.8 Mpc)[3]
Redshift0.0065[2]
HostNGC 2770[2]
Peak apparent magnitude17.2[2]
Total energy output~1.5×1051 erg[3]
[edit on Wikidata]

SN 2007uy was a supernova that occurred in the spiral galaxy NGC 2770. It was discovered by Yoji Hirose on December 31, 2007 from Chigasaki city in Japan,[4] approximately four days after the explosion.[3] The position of the supernova was offset 20.6″ east and 15.5″ south of the galaxy's nucleus,[2] near a star-forming region.[5] It was identified as a Type Ib supernova from its spectrum a week before reaching maximum, and appeared the most similar to SN 2004gq.[1]

Emissions from SN 2007uy were detected from the X-ray to the radio band.[6] The light from this event was heavily reddened due to intervening dust in the host galaxy. This energetic explosion released ~1.5×1051 erg in energy and ejected a mass of 4.4 M☉.[3] The progenitor was likely a massive star that had been stripped of its hydrogen envelope by a binary companion.[5] There is no radio evidence of a relativistic jet of the type that would be associated with a gamma-ray burst.[6]

While interesting in its own right, SN 2007uy was overshadowed by SN 2008D, a supernova whose burst was observed serendipitously while SN 2007uy was being studied by Swift, something unprecedented in astronomy.[7] This second supernova occurred within ten days of the first.[6]

  1. ^ a b Cite error: The named reference Blondin_Calkins_2008 was invoked but never defined (see the help page).
  2. ^ a b c d e f g h Cite error: The named reference Barbon_et_al_2008 was invoked but never defined (see the help page).
  3. ^ a b c d Cite error: The named reference Roy_et_al_2013 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Nakano_et_al_2008 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Thöne_et_al_2015 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference van_der_horst_et_al_2011 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Goddard2008 was invoked but never defined (see the help page).