SIMBAD references

2018ApJ...862..124R - Astrophys. J., 862, 124-124 (2018/August-1)

No surviving companion in Kepler's supernova.

RUIZ-LAPUENTE P., DAMIANI F., BEDIN L., GONZALEZ HERNANDEZ J.I., GALBANY L., PRITCHARD J., CANAL R. and MENDEZ J.

Abstract (from CDS):

We have surveyed Kepler's supernova remnant in search of the companion star of the explosion. We have gone as deep as 2.6 L in all stars within 20% of the radius of the remnant. We use FLAMES at the VLT-UT2 telescope to obtain high-resolution spectra of the stellar candidates selected from Hubble Space Telescope (HST) images. The resulting set of stellar parameters suggests that these stars come from a rather ordinary mixture of field stars (mostly giants). A few of the stars seem to have low [Fe/H] (←1) and they are consistent with being metal-poor giants. The radial velocities and rotational velocities vrot sin i are very well determined. There are no fast rotating stars because vrot sin i < 20 km s–1 for all the candidates. The radial velocities from the spectra and the proper motions determined from HST images are compatible with those expected from the Besancon model of the Galaxy. The strong limits placed on luminosity suggest that this supernova could have arisen either from the core-degenerate scenario or from the double-degenerate scenario.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): binaries: general - supernovae: general - supernovae: individual: SN 1604

Nomenclature: Fig. 1, Tables 1-7: [RDB2018] TNNa (Nos T01-T14, T14b, T15-T31).

Simbad objects: 42

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2021.03.04-16:11:48

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