scholarly journals Cosmographic Evaluation of the Deceleration Parameter Using Type Ia Supernova Data

2004 ◽  
Vol 614 (1) ◽  
pp. 1-5 ◽  
Author(s):  
Moncy V. John
Keyword(s):  
Deceleration Parameter ◽  
Type Ia Supernova ◽  
Type Ia

scholarly journals ANISOTROPY OF COSMIC ACCELERATION

2013 ◽  
Vol 22 (09) ◽  
pp. 1350060 ◽  
Author(s):  
WEN ZHAO ◽  
PUXUN WU ◽  
YANG ZHANG
Keyword(s):  
Coordinate System ◽  
Deceleration Parameter ◽  
Cosmic Acceleration ◽  
Type Ia Supernova ◽  
Galactic System ◽  
Type Ia ◽  
Best Fit

In this paper, we study the anisotropy of cosmic acceleration by dividing the Union2 Type Ia supernova (SNIa) dataset into 12 subsets according to their positions in Galactic coordinate system. In each region, we derive the deceleration parameter q0 as the diagnostic to quantify the anisotropy level in the corresponding direction, and construct q0 anisotropic maps by combining these q0 values. In addition to the monopole component, we find the significant dipole effect in the q0-maps with the amplitude [Formula: see text], which deviates from zero at more than 2-σ level. The direction of the best-fit dipole is (θ = 108.8°, ϕ = 187.0°) in Galactic system. Interesting enough, we find the direction of this dipole is nearly perpendicular to the CMB kinematic dipole, and the angle between them is 95.7°. The perpendicular relation is anomalous at the 1-in-10 level.

Stellar Metallicities and Type Ia Supernova Rates in the Early‐Type Galaxy NGC 5846 fromROSATandASCAObservations

1999 ◽  
Vol 514 (2) ◽  
pp. 844-855 ◽  
Author(s):  
A. Finoguenov ◽  
C. Jones ◽  
W. Forman ◽  
L. David
Keyword(s):  
Early Type ◽  
Type Ia Supernova ◽  
Type Ia ◽  
Early Type Galaxy

scholarly journals THE GOLDEN STANDARD TYPE Ia SUPERNOVA 2005cf: OBSERVATIONS FROM THE ULTRAVIOLET TO THE NEAR-INFRARED WAVEBANDS

2009 ◽  
Vol 697 (1) ◽  
pp. 380-408 ◽  
Author(s):  
X. Wang ◽  
W. Li ◽  
A. V. Filippenko ◽  
R. J. Foley ◽  
R. P. Kirshner ◽  
...  
Keyword(s):  
Near Infrared ◽  
Standard Type ◽  
Type Ia Supernova ◽  
Type Ia ◽  
Golden Standard

scholarly journals Fourteen months of observations of the possible super-Chandrasekhar mass Type Ia Supernova 2009dc

2010 ◽  
Vol 410 (1) ◽  
pp. 585-611 ◽  
Author(s):  
Jeffrey M. Silverman ◽  
Mohan Ganeshalingam ◽  
Weidong Li ◽  
Alexei V. Filippenko ◽  
Adam A. Miller ◽  
...  
Keyword(s):  
Type Ia Supernova ◽  
Type Ia ◽  
Mass Type

scholarly journals Search for Type Ia supernova NUV–optical subclasses

2016 ◽  
Vol 466 (1) ◽  
pp. 884-891 ◽  
Author(s):  
David Cinabro ◽  
Daniel Scolnic ◽  
Richard Kessler ◽  
Ashley Li ◽  
Jake Miller
Keyword(s):  
Type Ia Supernova ◽  
Type Ia

scholarly journals The Effect of Metallicity on the Delay-Time Distribution of Type Ia Supernova

2011 ◽  
Vol 63 (4) ◽  
pp. L31-L35 ◽  
Author(s):  
Xiang Cun Meng ◽  
Zhong Mu Li ◽  
Wu Ming Yang
Keyword(s):  
Delay Time ◽  
Time Distribution ◽  
Type Ia Supernova ◽  
Type Ia

scholarly journals On the road to consistent Type Ia supernova explosion models

2006 ◽  
Vol 2 (14) ◽  
pp. 308-309
Author(s):  
Friedrich K. Röpke
Keyword(s):  
Three Dimensional ◽  
Supernova Explosion ◽  
The Road ◽  
Type Ia Supernova ◽  
Type Ia ◽  
Recent Developments ◽  
Consistent Picture ◽  
On The Road ◽  
Distance Indicators ◽  
Three Dimensional Simulations

AbstractKeeping up with ever more detailed observations, Type Ia supernova (SN Ia) explosion models have seen a brisk development over the past years. The aim is to construct a self-consistent picture of the physical processes in order to gain the predictive power necessary to answer questions arising from the application of SNe Ia as cosmological distance indicators. We review recent developments in modeling these objects focusing on three-dimensional simulations.

scholarly journals IS THERE A HIDDEN HOLE IN TYPE Ia SUPERNOVA REMNANTS?

2011 ◽  
Vol 745 (1) ◽  
pp. 75 ◽  
Author(s):  
D. García-Senz ◽  
C. Badenes ◽  
N. Serichol
Keyword(s):  
Supernova Remnants ◽  
Type Ia Supernova ◽  
Type Ia
Sign in / Sign up

Export Citation Format

Share Document