$doc.title
... rates for stars with different temperatures and luminosities as obtained by direct calculations and by the semianalytical method as outlined below. Numerical 3D simulations enable one to compute directly the excitation rates of p-modes for stars with various temperatures and luminosities. For instan ...
... rates for stars with different temperatures and luminosities as obtained by direct calculations and by the semianalytical method as outlined below. Numerical 3D simulations enable one to compute directly the excitation rates of p-modes for stars with various temperatures and luminosities. For instan ...
JRASC, June 2014 Issue (PDF, low resolution)
... of a historical, biographical, or educational nature of general interest to the astronomical community. All contributions are welcome, but the editors reserve the right to edit material prior to publication. Research papers are reviewed prior to publication, and professional astronomers with institu ...
... of a historical, biographical, or educational nature of general interest to the astronomical community. All contributions are welcome, but the editors reserve the right to edit material prior to publication. Research papers are reviewed prior to publication, and professional astronomers with institu ...
Extrasolar Kuiper Belt Dust Disks
... (Backman and Paresce, 1993). Because all the above timescales are generally much shorter than the age of the disk, it is inferred that the observed dust is not primordial but is likely produced by a reservoir of undetected kilometersized planetesimals producing dust by mutual collisions or by evapor ...
... (Backman and Paresce, 1993). Because all the above timescales are generally much shorter than the age of the disk, it is inferred that the observed dust is not primordial but is likely produced by a reservoir of undetected kilometersized planetesimals producing dust by mutual collisions or by evapor ...
Pinpointing the Milky Way
... range of scientific disciplines besides galaxy studies. Gaia’s wealth of data will inform and invigorate scientific areas as diverse as the life cycles of stars, the distribution of ‘dark matter’ and Einstein’s theory of general relativity. Selected as an ESA Cornerstone mission in 2000, Gaia is now ...
... range of scientific disciplines besides galaxy studies. Gaia’s wealth of data will inform and invigorate scientific areas as diverse as the life cycles of stars, the distribution of ‘dark matter’ and Einstein’s theory of general relativity. Selected as an ESA Cornerstone mission in 2000, Gaia is now ...
Stars: Intro & Classification Astronomy 1 — Elementary Astronomy LA Mission College
... he graph at right to determine which of the two stars (A gives off more green light? Astronomy 1 - Elementary Astronomy LA Mission College ...
... he graph at right to determine which of the two stars (A gives off more green light? Astronomy 1 - Elementary Astronomy LA Mission College ...
1 The Hubble Story (10:56)
... proplyds may very well be young planetary systems in the early stages of creation. The details revealed by Hubble are superior to anything seen to date with groundbased instruments and, thanks to Hubble, we have visual proof today that dusty disks around young stars are common. With ground-based tel ...
... proplyds may very well be young planetary systems in the early stages of creation. The details revealed by Hubble are superior to anything seen to date with groundbased instruments and, thanks to Hubble, we have visual proof today that dusty disks around young stars are common. With ground-based tel ...
Unlocking the secrets of stellar haloes using combined star counts
... whereas the same absorption lines are consistent with a standard IMF in the case of globular clusters (van Dokkum & Conroy 2011). Attempts to constrain the IMF in the field population of the Large Magellanic Cloud using star counts (e.g. Gouliermis, Brandner & Henning 2008) have also yielded results ...
... whereas the same absorption lines are consistent with a standard IMF in the case of globular clusters (van Dokkum & Conroy 2011). Attempts to constrain the IMF in the field population of the Large Magellanic Cloud using star counts (e.g. Gouliermis, Brandner & Henning 2008) have also yielded results ...
PDF
... origin of galaxy morphologies lies in the extent to which galaxies may have interacted during their history, as well as the extent to which it may be possible to have early “monolithic” collapse of large systems as opposed to more gradual, hierarchical assembly. ...
... origin of galaxy morphologies lies in the extent to which galaxies may have interacted during their history, as well as the extent to which it may be possible to have early “monolithic” collapse of large systems as opposed to more gradual, hierarchical assembly. ...
Finding Dark Matter
... Follow-up Program • Developed computational tools and protocols for analyzing many GBs of nightly CTIO observations in almost real time to pick out interesting events and prioritize them for followup observation – Follow-up is time critical because events are only active for a few weeks ...
... Follow-up Program • Developed computational tools and protocols for analyzing many GBs of nightly CTIO observations in almost real time to pick out interesting events and prioritize them for followup observation – Follow-up is time critical because events are only active for a few weeks ...
Period analysis of variable stars by robust smoothing
... STellar Astrophysics and Research on Exoplanets (STARE). The primary objective of the STARE project is to use precise photometry to search for extrasolar giant planets transiting their parent stars (Charbonneau et al., 2000). An important byproduct of STARE is a survey of variable stars. For each of ...
... STellar Astrophysics and Research on Exoplanets (STARE). The primary objective of the STARE project is to use precise photometry to search for extrasolar giant planets transiting their parent stars (Charbonneau et al., 2000). An important byproduct of STARE is a survey of variable stars. For each of ...
Origin and loss of nebula-captured hydrogen envelopes from `sub`
... motion energy, they will start to accumulate nebula gas into their atmospheres. Hydrostatic and spherically symmetric models of such primary hydrogen atmospheres have been applied by Hayashi et al. (1979) and Nakazawa et al. (1985) assuming a continuous influx of planetesimals which generated planet ...
... motion energy, they will start to accumulate nebula gas into their atmospheres. Hydrostatic and spherically symmetric models of such primary hydrogen atmospheres have been applied by Hayashi et al. (1979) and Nakazawa et al. (1985) assuming a continuous influx of planetesimals which generated planet ...
CHARACTERIZING PROPERTIES OF OPTICAL FIBERS AND
... with period P. The exoplanet induces a radial-velocity semi-amplitude, K, in the host star's motion (Clubb 2008). ..................................................................... 7 Figure 1-3: Definition of orbital inclination. When i = 90° the orbit is seen edgeon, and when it is 0° it is seen ...
... with period P. The exoplanet induces a radial-velocity semi-amplitude, K, in the host star's motion (Clubb 2008). ..................................................................... 7 Figure 1-3: Definition of orbital inclination. When i = 90° the orbit is seen edgeon, and when it is 0° it is seen ...
Program and Abstract Book - European Southern Observatory
... the former has just become dominant. The estimated outflow mass and strength suggest that it has already strongly affected the core-to-star efficiency to 1/3 at this early stage. The zoomin observation also reveals multiple wide outflowing shells with positions and shapes smoothly changing over a wi ...
... the former has just become dominant. The estimated outflow mass and strength suggest that it has already strongly affected the core-to-star efficiency to 1/3 at this early stage. The zoomin observation also reveals multiple wide outflowing shells with positions and shapes smoothly changing over a wi ...
Summary of Talks at Growing Black Holes 2004 in Garching
... massive SF. -> High resolution CO observations of the object resolve it spatially into two peaks. It also resolved in velocity space, with a CO line width of 280 km/s and a bulge mass estimate of 1e10 solar masses within 2kpc, which is lower than expected from M sigma relation. Is this object not fu ...
... massive SF. -> High resolution CO observations of the object resolve it spatially into two peaks. It also resolved in velocity space, with a CO line width of 280 km/s and a bulge mass estimate of 1e10 solar masses within 2kpc, which is lower than expected from M sigma relation. Is this object not fu ...
Document
... PSF fitting for HST does 0.01 pixels, or half a mili-arcsecond so the minimal detections with HST go out to 2-3 kilaparsecs (WFC or HRC) ...
... PSF fitting for HST does 0.01 pixels, or half a mili-arcsecond so the minimal detections with HST go out to 2-3 kilaparsecs (WFC or HRC) ...
astro-ph/0301519 PDF
... We present a series of systematic abundance measurements for 25 hot DA white dwarfs in the temperature range ~20000-110000K, based on far-UV spectroscopy with STIS/GHRS on HST, IUE and FUSE. Using our latest heavy element blanketed non-LTE stellar atmosphere calculations we have addressed the heavy ...
... We present a series of systematic abundance measurements for 25 hot DA white dwarfs in the temperature range ~20000-110000K, based on far-UV spectroscopy with STIS/GHRS on HST, IUE and FUSE. Using our latest heavy element blanketed non-LTE stellar atmosphere calculations we have addressed the heavy ...
4-3.8 - S2TEM Centers SC
... Previous/Future knowledge: This indicator is new for this grade. In 8th grade (8-4.10), students will compare the purposes of the tools and technology that scientists use to study space (including various types of telescopes, satellites, space probes, and spectroscopes). It is essential for students ...
... Previous/Future knowledge: This indicator is new for this grade. In 8th grade (8-4.10), students will compare the purposes of the tools and technology that scientists use to study space (including various types of telescopes, satellites, space probes, and spectroscopes). It is essential for students ...
The Habitability of Proxima Centauri b I: Evolutionary Scenarios
... the development of life. When viewed across interstellar distances, biology is best understood as a planetary process: life is a global phenomenon that alters geochemical and photochemical processes. Spectroscopic indicators of life, i.e. biosignatures, can only be identified if the abiotic processe ...
... the development of life. When viewed across interstellar distances, biology is best understood as a planetary process: life is a global phenomenon that alters geochemical and photochemical processes. Spectroscopic indicators of life, i.e. biosignatures, can only be identified if the abiotic processe ...