Zobrazeno 1 - 10
of 103
pro vyhledávání: '"Hinkle, K. H."'
Autor:
Hinkle, K. H., Fekel, F. C., Straniero, O., Maas, Z. G., Joyce, R. R., Lebzelter, T., Muterspaugh, M. W., Sowell, J. R.
A single-lined spectroscopic orbit for the M giant in the X-ray binary IGR J16194-2810 is determined from a time-series of optical spectra. The spectroscopic orbital period of 192.5 days is twice that of the photometric period, confirming that the M
Externí odkaz:
http://arxiv.org/abs/2405.02270
Autor:
Hinkle, K. H., Lebzelter, T., Fekel, F. C., Straniero, O., Joyce, R. R., Prato, L., Karnath, N., Habel, N.
The X-ray binary 4U 1954+31 has been classified as a Low Mass X-ray Binary (LMXB) containing a M giant and a neutron star (NS). It has also been included in the rare class of X-ray symbiotic binaries (SyXB). The Gaia parallax, infrared colors, spectr
Externí odkaz:
http://arxiv.org/abs/2010.01081
V934 Her = 4U1700+24 is an M giant-neutron star (NS) X-ray symbiotic (SyXB) system. Employing optical and infrared radial velocities spanning 29 years combined with the extensive velocities in the literature, we compute the spectroscopic orbit of the
Externí odkaz:
http://arxiv.org/abs/1812.08811
Autor:
Arneson, R. A., Gehrz, R. D., Woodward, C. E., Helton, L. A., Shenoy, D., Evans, A., Keller, L. D., Hinkle, K. H., Jura, M., Lebzelter, T., Lisse, C. M., Rushton, M. T., Mizrachi, J.
We present a SOFIA FORCAST grism spectroscopic survey to examine the mineralogy of the circumstellar dust in a sample of post-asymptotic giant branch yellow supergiants that are believed to be the precursors of planetary nebulae. Our mineralogical mo
Externí odkaz:
http://arxiv.org/abs/1706.00445
High spectral resolution mid-IR observations of ethylene (C2H4) towards the AGB star IRC+10216 were obtained using the Texas Echelon Cross Echelle Spectrograph (TEXES) at the NASA Infrared Telescope Facility (IRTF). Eighty ro-vibrational lines from t
Externí odkaz:
http://arxiv.org/abs/1612.09307
Autor:
Pilachowski, C. A., Hinkle, K. H., Young, M. D., Dennis, H. B., Gopu, A., Henschel, R., Hayashi, S.
We describe the SpArc science gateway for spectral data obtained during the period from 1975 through 1995 at the Kitt Peak National Observatory using the Fourier Transform Spectrometer (FTS) in operation at the Mayall 4-m telescope. SpArc is hosted b
Externí odkaz:
http://arxiv.org/abs/1610.02535
C and O isotopic ratios are reported for a sample of 46 Mira and SRa-type variable AGB stars. Vibration-rotation 1st and 2nd overtone CO lines in 1.5 to 2.5 $\mu$m spectra were measured to derive isotopic ratios for 12C/13C, 16O/17O, and 16O/18O. Com
Externí odkaz:
http://arxiv.org/abs/1606.08478
The origin of 'cosmic' fluorine is uncertain, but there are three proposed production sites/mechanisms: AGB stars, $\nu$ nucleosynthesis in Type II supernovae, and/or the winds of Wolf-Rayet stars. The relative importance of these production sites ha
Externí odkaz:
http://arxiv.org/abs/1406.4876
The study of symbiotic systems is of considerable importance in our understanding of binary system stellar evolution in systems where mass loss or transfer takes place. Elemental abundances are of special significance since they can be used to track
Externí odkaz:
http://arxiv.org/abs/1403.2659
(abbreviated) Measuring the surface abundances of AGB stars is an important tool for studying the effects of nucleosynthesis and mixing in the interior of low- to intermediate mass stars during their final evolutionary phases. The atmospheres of AGB
Externí odkaz:
http://arxiv.org/abs/1004.3481