Zobrazeno 1 - 8
of 8
pro vyhledávání: '"S D Hügelmeyer"'
Autor:
Andreas Seifahrt, Travis S. Barman, Stefan Dreizler, Peter H. Hauschildt, S. D. Hügelmeyer, Derek Homeier
Publikováno v:
Astronomy & Astrophysics. 498:793-800
We present a new code for the calculation of the 1D structure and synthetic spectra of accretion disks. The code is an extension of the general purpose stellar atmosphere code PHOENIX and is therefore capable of including extensive lists of atomic an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::617a2c14c300953f56e2ce51f0099212
https://doi.org/10.1051/0004-6361/200811536
https://doi.org/10.1051/0004-6361/200811536
Autor:
Stefan Dreizler, Thorsten Nagel, Sonja Schuh, S. D. Hügelmeyer, T. Stahn, D.-J. Kusterer, Boris T. Gänsicke, Matthias R. Schreiber
Publikováno v:
Astronomy & Astrophysics. 448:L25-L28
The archival spectrum of SDSSJ212531.92-010745.9 shows not only the typical signature of a PG1159 star, but also indicates the presence of a companion. Our aim was the proof of the binary nature ofthis object and the determination of its orbital peri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c3528e3f2945b5f2dc476b967f3e5e59
https://doi.org/10.1051/0004-6361:200600009
https://doi.org/10.1051/0004-6361:200600009
Autor:
Stefan Dreizler, S. D. Hügelmeyer, H. C. Harris, Atsuko Nitta, Jurek Krzesinski, James Liebert, S. J. Kleinman
Aims. We present a hot white dwarf (WD) luminosity function (LF) using data taken from the Sloan Digital Sky Survey (SDSS) Data Release 4. We present and discuss a combined LF, along with separate DA and non-DA as LFs. We explore the completeness of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a36d823dbe89c82d001543b1df2ba5b
http://resolver.sub.uni-goettingen.de/purl?gs-1/9734
http://resolver.sub.uni-goettingen.de/purl?gs-1/9734
Publikováno v:
AIP Conference Proceedings.
The inner gaseous regions of protoplanetary disks are of special interest in the formation and evolution of planets and stars because they are the likely birthplaces of planets and serve as the accretion reservoir for young stars. The study of inner
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::872abda82369b04920a7baf5ba25ad1c
https://doi.org/10.1063/1.3099127
https://doi.org/10.1063/1.3099127
Autor:
A. Nitta, James Liebert, H. C. Harris, Stefan Dreizler, Jurek Krzesinski, S. D. Hügelmeyer, S. J. Kleinman
A large collection of white dwarf (WD) spectra from Sloan Digital Sky Survey (SDSS) data release 4 (DR4) WD catalog data allowed us to obtain a luminosity function (LF) for the hottest WDs. The LF was calculated basing on spectra of the WDs from a sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::778200ab2038fdd9b235122ccfffe4a6
http://resolver.sub.uni-goettingen.de/purl?gs-1/5876
http://resolver.sub.uni-goettingen.de/purl?gs-1/5876
Autor:
S. D. Hügelmeyer, S. Dreizler, D. Homeier, P. H. Hauschildt, T. Barman, Ivan Hubeny, James M. Stone, Keith MacGregor, Klaus Werner
Publikováno v:
AIP Conference Proceedings.
We present our code for the calculation of the 1D structure and synthetic spectra of accretion disks. The code is an extension of the well‐tested stellar atmosphere code PHOENIX and is therefore capable of including large lists of atomic and molecu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e768ad9644516c3d0f447058872e098e
https://doi.org/10.1063/1.3250092
https://doi.org/10.1063/1.3250092
Autor:
S Dreizler, S D Hügelmeyer
Publikováno v:
Journal of Physics: Conference Series. 172:012048
For a long time, no hydrogen-deficient white dwarfs have been known that have effective temperature between 30 kK and < 45 kK, i.e. exceeding those of DB white dwarfs and having lower ones than DO white dwarfs. Therefore, this temperature range was l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::933166f293dcc7cec5044271eeee52b5
https://doi.org/10.1088/1742-6596/172/1/012048
https://doi.org/10.1088/1742-6596/172/1/012048
Publikováno v:
Journal of Physics: Conference Series. 172:012060
Gas and dust disks are common objects in the universe and can be found around various objects, e.g. young stars, cataclysmic variables, active galactic nuclei, or white dwarfs. The light that we receive from disks provides us with clues about their c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cadec462f9ab39c82dabf684e1769cbc
https://doi.org/10.1088/1742-6596/172/1/012060
https://doi.org/10.1088/1742-6596/172/1/012060