HST/COS Spectroscopy of H1504+65

Details HST/COS Spectroscopy of H1504+65 HST/COS Spectroscopy of H1504+65

2010-12-23

arxiv.org/abs/1012.5222v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

17th European White Dwarf Workshop, Tuebingen 2010, AIP Conf. Proc. 1273, 58

Scientific paper

We present new ultraviolet spectra of the peculiar white dwarf (WD) H1504+65, obtained with COS on HST. H1504+65 is the hottest known WD (Teff= 200,000 K) and has an atmosphere mainly composed of C and O, augmented with high amounts of Ne and Mg. This object is unique and the origin of its surface chemistry is completely unclear. We probably see the naked core of either a C--O WD or even a O--Ne--Mg WD. In the latter case, this would be the first direct proof that such WDs can be the outcome of single-star evolution. The new observations were performed to shed light on the origin of this mysterious object.

Affiliated with

Also associated with

No associations

Rating

HST/COS Spectroscopy of H1504+65 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 HST/COS Spectroscopy of H1504+65, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and HST/COS Spectroscopy of H1504+65 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-296847