2009MNRAS.399L.156R

Query : 2009MNRAS.399L.156R

2009MNRAS.399L.156R - Mon. Not. R. Astron. Soc., 399, L156-L159 (2009/October-2)

On type Ia supernovae from the collisions of two white dwarfs.

RASKIN C., TIMMES F.X., SCANNAPIECO E., DIEHL S. and FRYER C.

Abstract (from CDS):

We explore collisions between two white dwarfs as a pathway for making Type Ia supernovae (SNIa). White dwarf number densities in globular clusters allow 10-100, redshift ≲1 collisions per year, and observations by Chomiuk et al. of globular clusters in the nearby S0 galaxy NGC 7457 have detected what is likely to be a SNIa remnant. We carry out simulations of the collision between two 0.6M_☉ white dwarfs at various impact parameters and mass resolutions. For impact parameters less than half the radius of the white dwarf, we find such collisions produce ~0.4M_☉of⁵⁶Ni, making such events potential candidates for underluminous SNIa or a new class of transients between Novae and SNIa.

Journal keyword(s): hydrodynamics - nuclear reactions, nucleosynthesis, abundances - supernovae: general - white dwarfs

Simbad objects: 1

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Number of rows : 1

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	NGC 7457	AG?	23 00 59.9263288440	+30 08 41.764398792		11.04	11.87			~	459	0

Query : 2009MNRAS.399L.156R

Basic data :

NGC 7457 -- Active Galaxy Nucleus Candidate

G (2008ApJ,LEDA,...), AG? (2020MNRAS), * (Gaia)

23 00 59.9263288440 +30 08 41.764398792 (Optical) [ 0.1047 0.1328 90 ] A 2020yCat.1350....0G

22 58 36.1776513441 +29 52 34.010849870 [ 0.1047 0.1328 90 ]

096.2178626602977 -26.9358545556305 [ 0.1047 0.1328 90 ]

-0.085 0.208 [0.136 0.159 90] A 2020yCat.1350....0G

V(km/s) 804 [42] / z(~) 0.002685 [0.000140] / cz 804.94 [41.97] D 2002LEDA.........0P

0.8793 [0.7462] A 2018yCat.1345....0G

SA(rs)0 D 2013AJ....146...67B

3.73534 2.01783 126 (Opt) B 2023ApJS..269....3M

B 11.04 [~] E ~

V 11.87 [~] E ~

G 17.081636 [0.005582] C 2020yCat.1350....0G

J 9.110 [0.013] C 2006AJ....131.1163S

H 8.471 [0.016] C 2006AJ....131.1163S

K 8.192 [0.024] C 2006AJ....131.1163S

g (AB) 11.6910 [0.0027] B 2023ApJS..269....3M

r (AB) 10.9434 [0.0029] B 2023ApJS..269....3M

z (AB) 10.3678 [0.0018] B 2023ApJS..269....3M

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`NGC 7457`	`2MASX J23005993+3008416`	`UZC J230100.0+300841`	`[M98c] 225836.1+295231`
`LEDA 70258`	`MCG+05-54-026`	`Z 496-32`	`Gaia DR2 1886130734806967552`
`MAPS-PP O-1184-232596`	`UGC 12306`	`Z 2258.6+2953`	`Gaia DR3 1886130734806967552`

References (459 between 1850 and 2026) (Total 459)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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Data at NED - NASA/IPAC Extragalactic Database : NGC 7457

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NGC 7457 2MASX J23005993+3008416 UGC 12306 Gaia DR2 1886130734806967552 Gaia DR3 1886130734806967552

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