The supernova Ia 2011fe in M101, its tip of the red-giant branch (TRGB) distance, and the value of H_0

Details The supernova Ia 2011fe in M101, its tip of the red-giant branch (TRGB) distance, and the value of H_0 The supernova Ia 2011fe in M101, its tip of the red-giant branch (TRGB) distance, and the value of H_0

2011-12-02

arxiv.org/abs/1112.0439v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

4 pages (emulateapj), 1 figure, 2 tables, submitted to ApJL

Scientific paper

The light curve parameters of the normal type Ia SN2011fe are derived from the rich archive of the AAVSO. This leads, together with the TRGB distance modulus of (m-M) = 29.39 +/- 0.05 of the parent galaxy M101, to maximum magnitudes of the unreddened SN of M_B = -19.45 +/- 0.08, M_V = -19.46 +/- 0.08, and M_I = -19.25 +/- 0.06 (for the standard decline rate of Delta m_15 = 1.1). When these values are inserted into the Hubble line defined by 62 SNe Ia with 3000 < v < 20,000 km/s - and considering also four other SNe Ia with TRGB distances - one obtains a large-scale value of the Hubble constant of H_0 = 64.3 +/- 1.9 +/- 3.2. This value can be much improved in the future by using only TRGB distances of SNe Ia.

Affiliated with

Also associated with

No associations

Rating

The supernova Ia 2011fe in M101, its tip of the red-giant branch (TRGB) distance, and the value of H_0 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The supernova Ia 2011fe in M101, its tip of the red-giant branch (TRGB) distance, and the value of H_0, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The supernova Ia 2011fe in M101, its tip of the red-giant branch (TRGB) distance, and the value of H_0 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-140167