Results 31 to 40 of about 3,775,717 (320)
Debris disks in main sequence binary systems [PDF]
, 2006 We observed 69 A3-F8 main sequence binary star systems using the Multiband Imaging Photometer for Spitzer onboard the Spitzer Space Telescope. We find emission significantly in excess of predicted photospheric flux levels for 9(+4/-3)% and 40(+7/-6)% of ...
A. Boden +23 more
core +2 more sources
Hydrodynamics and Survivability during Post-main-sequence Planetary Engulfment
The Astrophysical Journal, 2023 The engulfment of substellar bodies (SBs), such as brown dwarfs and planets, by giant stars is a possible explanation for rapidly rotating giants, lithium-rich giants, and the presence of SBs in close orbits around subdwarfs and white dwarfs.
Ricardo Yarza +8 more
doaj +1 more source
A Study of ISO Spectra for Herbig Ae/Be Stars [PDF]
Journal of Astronomy and Space Sciences, 2002 We present the infrared spectra of Herbig Ae/Be stars including the Infrared Space Observatory (ISO) data. To investigate the overall properties of their circumstellar dust envelope and/or disk, we combine the IR spectra with photometric data ranging ...
Kyung-Won Suh, Mi-Ryang Kim, Ji-Hye Baek
doaj +1 more source
Star-forming Main Sequence of Giant Low Surface Brightness Galaxies
The Astrophysical Journal, 2023 Giant low surface brightness galaxies (GLSBGs) are fundamentally distinct from normal galaxies and other types of LSBGs in terms of star formation and evolution. In this work, we collected 27 local GLSBGs from the literature.
Wei Du +4 more
doaj +1 more source
Detached white dwarf main-sequence star binaries [PDF]
, 2004 We considered the formation of detached white dwarf main-sequence star (WDMS) binaries through seven evolutionary channels subdivided according to the evolutionary process that gives rise to the formation of the white dwarf or its helium-star progenitor:
B. Willems +55 more
core +2 more sources
PRE-MAIN SEQUENCE EVOLUTIONS OF SOLAR ABUNDANCE LOW MASS STARS [PDF]
Journal of Astronomy and Space Sciences, 2007 We present the Pre-Main Sequence (PMS) evolutionary tracks of stars with 0.065~5.0M_⨀. The models were evolved from the PMS stellar birthline to the onset of hydrogen burning in the core.
Youn Kil Jung, Y. -C. Kim
doaj +1 more source
The ALMaQUEST Survey: The Molecular Gas Main Sequence and the Origin of the Star-forming Main Sequence [PDF]
The Astrophysical Journal Letters, 2019 Abstract The origin of the star-forming main sequence (SFMS; i.e., the relation between star formation rate and stellar mass, globally or on kpc scales) remains a hotly debated topic in galaxy evolution. Using the ALMA-MaNGA QUEnching and STar formation (ALMaQUEST) survey, we show that for star-forming spaxels in the main-sequence ...
Lin, L +11 more
openaire +5 more sources
The main sequence of three red supergiant clusters [PDF]
, 2013 Massive clusters in our Galaxy are an ideal testbed to investigate the properties and evolution of high-mass stars. They provide statistically significant samples of massive stars of uniform ages. To accurately determine the intrinsic physical properties
Alexander +34 more
core +3 more sources
Quasar Main Sequence in the UV Plane [PDF]
The Astrophysical Journal, 2020 Abstract Active galaxies form a clear pattern in the optical plane showing the correlation between the FWHM of the Hβ line and the ratio of the equivalent width (EW) of the optical Fe ii emission and the broad EW(Hβ). This pattern is frequently referred to as the quasar main sequence. In this paper, we study the UV plane showing the FWHM
Marzena Śniegowska +4 more
openaire +3 more sources
The Zero Age Main Sequence of WIMP burners [PDF]
, 2007 We modify a stellar structure code to estimate the effect upon the main sequence of the accretion of weakly interacting dark matter onto stars and its subsequent annihilation. The effect upon the stars depends upon whether the energy generation rate from
A. Bouquet +10 more
core +2 more sources