Search Results - "Günther, H. Moritz"
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The Components of Cepheid Systems: The FN Vel System
Published in The Astronomical journal (01-11-2024)“…Abstract Cepheid masses continue to be important tests of evolutionary tracks for intermediate-mass stars as well as important predictors of their future fate…”
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The Orbit and Mass of the Cepheid AW Per
Published in The Astrophysical journal (01-09-2024)“…Abstract The Cepheid AW Per is a component in a multiple system with a long-period orbit. The radial velocities of Griffin cover the 38 yr orbit well. An…”
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Erratum: “Hubble Space Telescope Snapshot Survey for Resolved Companions of Galactic Cepheids: Final Results” (2020, ApJ, 905, 81)
Published in The Astrophysical journal (01-07-2024)Get full text
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The UV Perspective of Low-Mass Star Formation
Published in Galaxies (01-03-2020)“…The formation of low-mass ( M ★ ≲ 2 M ⊙ ) stars in molecular clouds involves accretion disks and jets, which are of broad astrophysical interest. Accreting…”
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X-Rays in Cepheids: Identifying Low-mass Companions of Intermediate-mass Stars
Published in The Astrophysical journal (01-10-2022)“…Abstract X-ray observations have been made of a sample of 20 classical Cepheids, including two new observations (Polaris and l Car) reported here. The…”
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Hubble Space Telescope Snapshot Survey for Resolved Companions of Galactic Cepheids: Final Results
Published in The Astrophysical journal (01-12-2020)“…Abstract Cepheids in multiple systems provide information on the outcome of the formation of massive stars. They can also lead to exotic end-stage objects…”
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BURN OUT OR FADE AWAY? ON THE X-RAY AND MAGNETIC DEATH OF INTERMEDIATE MASS STARS
Published in The Astrophysical journal (10-05-2014)“…The nature of the mechanisms apparently driving X-rays from intermediate mass stars lacking strong convection zones or massive winds remains poorly understood,…”
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The Mass of the Cepheid V350 Sgr
Published in The Astrophysical journal (10-10-2018)“…Abstract V350 Sgr is a classical Cepheid suitable for mass determination. It has a hot companion which is prominent in the ultraviolet (UV) and which is not…”
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Pre main sequence: Accretion & Outflows
Published 14-07-2022“…Low-mass pre-main sequence (PMS) stars are strong X-ray sources, because they possess hot corona like their older main-sequence counterparts. Unique to young…”
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The Components of Cepheid Systems: The FN Vel System Based on observations with the NASA/ESA Hubble Space Telescope obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc. under NASA contract NAS5-26555
Published in The Astronomical journal (24-10-2024)Get full text
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A Small Satellite Version of a Broad-band Soft X-ray Polarimeter
Published 04-12-2020“…We describe a new implementation of a broad-band soft X-ray polarimeter, substantially based on a previous design. This implementation, the Pioneer Soft X-ray…”
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The Mass of the Cepheid V350 Sgr
Published 30-08-2018“…V350 Sgr is a classical Cepheid suitable for mass determination. It has a hot companion which is prominent in the ultraviolet and which is not itself a binary…”
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The Orbit and Mass of the Cepheid AW Per ∗ ∗ Based on observations with the NASA/ESA Hubble Space Telescope obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555
Published in The Astrophysical journal (03-09-2024)Get full text
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Hubble Space Telescope Snapshot Survey for Resolved Companions of Galactic Cepheids: Final Results Based on observations with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NASA5-26555. † † Based on observations made with the Chandra X-ray Observatory
Published in The Astrophysical journal (15-12-2020)“…Cepheids in multiple systems provide information on the outcome of the formation of massive stars. They can also lead to exotic end-stage objects. This study…”
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The Mass of the Cepheid V350 Sgr Based on observations with the NASA/ESA Hubble Space Telescope obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555
Published in The Astrophysical journal (08-10-2018)“…V350 Sgr is a classical Cepheid suitable for mass determination. It has a hot companion which is prominent in the ultraviolet (UV) and which is not itself a…”
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Binary Properties from Cepheid Radial Velocities (CRaV)
Published 21-05-2015“…We have examined high accuracy radial velocities of Cepheids to determine the binary frequency. The data are largely from the CORAVEL spectrophotometer and the…”
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YSOVAR: Mid-infrared Variability Among YSOs in the Star Formation Region GGD 12-15
Published 17-07-2015“…We present an IR-monitoring survey with the $Spitzer$ Space Telescope of the star forming region GGD 12-15. Over 1000 objects were monitored including about…”
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The Components of Cepheid Systems: The FN Vel System
Published 02-10-2024“…Cepheid masses continue to be important tests of evolutionary tracks for intermediate mass stars as well as important predictors of their future fate. For…”
Get full text
Journal Article -
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The Orbit and Mass of the Cepheid AW Per
Published 25-06-2024“…The Cepheid AW Per is a component in a multiple system with a long period orbit. The radial velocities of Griffin (2016) cover the 38 year orbit well. An…”
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Journal Article