SPICA Yellow Book
... A complete understanding of the formation and evolution of galaxies, stars and planets can only be reached through the investigation of the cold and obscured parts of the Universe, where the basic processes of formation and evolution occur. Deep exploration of the cold Universe using high spatial re ...
... A complete understanding of the formation and evolution of galaxies, stars and planets can only be reached through the investigation of the cold and obscured parts of the Universe, where the basic processes of formation and evolution occur. Deep exploration of the cold Universe using high spatial re ...
NICMOS Coronagraphic Observations of 55 Cancri
... a submillimeter excess of 7.5±4.2 mJy at 450 µm and, more significantly, 2.8±0.5 mJy at 850 µm, as determined from SCUBA/JCMT observations. They attributed this excess to thermal emission from a dust population resembling our Kuiper Belt. The amount of dust required to produce these submillimeter fl ...
... a submillimeter excess of 7.5±4.2 mJy at 450 µm and, more significantly, 2.8±0.5 mJy at 850 µm, as determined from SCUBA/JCMT observations. They attributed this excess to thermal emission from a dust population resembling our Kuiper Belt. The amount of dust required to produce these submillimeter fl ...
Theoretical Predictions for Mass Loss Rates: Rotation & Pulsation
... What sets the Sun’s mass loss? • Coronal heating must be ultimately responsible. ...
... What sets the Sun’s mass loss? • Coronal heating must be ultimately responsible. ...
Evidence for the Tidal Destruction of Hot Jupiters by Subgiant Stars
... sibility is that tidal evolution has destroyed the hot Jupiters that once orbited the evolved stars (e.g., Rasio et al. 1996; Villaver & Livio 2009; Kunitomo et al. 2011; Adamów et al. 2012). The second possibility is that the evolved stars are on average more massive than the main-sequence stars, ...
... sibility is that tidal evolution has destroyed the hot Jupiters that once orbited the evolved stars (e.g., Rasio et al. 1996; Villaver & Livio 2009; Kunitomo et al. 2011; Adamów et al. 2012). The second possibility is that the evolved stars are on average more massive than the main-sequence stars, ...
Introduction
... 1995). This exoplanet, 51 Pegasi b, is classified as a Hot Jupiter as it is similar in mass to Jupiter (half the mass) and it orbits close to its star (about 8 times closer than Mercury orbits the Sun). The discovery of Hot Jupiters challenged our understanding of planet formation and evolution. Gas ...
... 1995). This exoplanet, 51 Pegasi b, is classified as a Hot Jupiter as it is similar in mass to Jupiter (half the mass) and it orbits close to its star (about 8 times closer than Mercury orbits the Sun). The discovery of Hot Jupiters challenged our understanding of planet formation and evolution. Gas ...
Star formation in a galactic outflow
... illustrated in Fig.3. This result strongly argues in favor of in-situ stellar photoionization, by young stars within the outflow. Even better evidence for stars formed in the outflow is the direct detection of a young stellar population with kinematical fingerprints of formation inside the outflow. ...
... illustrated in Fig.3. This result strongly argues in favor of in-situ stellar photoionization, by young stars within the outflow. Even better evidence for stars formed in the outflow is the direct detection of a young stellar population with kinematical fingerprints of formation inside the outflow. ...
The Formation and Evolution of Massive Black Holes - Ira-Inaf
... might have contained many stars with masses above a few hundred M⊙. This is because of the slow ...
... might have contained many stars with masses above a few hundred M⊙. This is because of the slow ...
SAGE_prop
... “he telegraphic apparatus was set on fire” after a major solar flare was observed. However, it was not until the mid 20th century that Bierman (1951) established the concept that `radiation' from the Sun was responsible, building on earlier work involving the interaction of atomic physics and astron ...
... “he telegraphic apparatus was set on fire” after a major solar flare was observed. However, it was not until the mid 20th century that Bierman (1951) established the concept that `radiation' from the Sun was responsible, building on earlier work involving the interaction of atomic physics and astron ...
Chapter 5 Theory of Stellar Evolution
... concentrate on what is known with some certainty. Thus, we assume that stars can contract out of the interstellar medium, and generally we avoid most of the detailed description of the final, fatal collapse of massive stars. In addition, the fascinating field of the evolution of close binary stars, ...
... concentrate on what is known with some certainty. Thus, we assume that stars can contract out of the interstellar medium, and generally we avoid most of the detailed description of the final, fatal collapse of massive stars. In addition, the fascinating field of the evolution of close binary stars, ...
STELLAR AGE VERSUS MASS OF EARLY
... performed visually by allowing age steps of 0.05 dex. The age range was then kept fixed for the other colors (middle and bottom panel). We see from the top panel of Fig. 2 that the SSP of HPL07 exceeds the observed color range at intermediate ages. This is no surprise, though: since the reddest colo ...
... performed visually by allowing age steps of 0.05 dex. The age range was then kept fixed for the other colors (middle and bottom panel). We see from the top panel of Fig. 2 that the SSP of HPL07 exceeds the observed color range at intermediate ages. This is no surprise, though: since the reddest colo ...
Multiple scattering polarization
... objects whose effective temperature ranges between 2400 and 1300 K are considered to be L dwarfs. The L dwarfs which show clear signature of primordial Li in their spectra are brown dwarfs. The cooler objects that show methane in their spectra are known as T dwarfs or methane dwarfs and all T dwarfs ...
... objects whose effective temperature ranges between 2400 and 1300 K are considered to be L dwarfs. The L dwarfs which show clear signature of primordial Li in their spectra are brown dwarfs. The cooler objects that show methane in their spectra are known as T dwarfs or methane dwarfs and all T dwarfs ...
Axisymmetric Simulations of Hot Jupiter
... for the hot population would imply τ ≫ 1 for the cold population, and the model transit depth would overestimate the observed transit depth when both contributions are included. Hence a self-consistent model for the source of atoms, as discussed in this paper, is required to understand the combined ...
... for the hot population would imply τ ≫ 1 for the cold population, and the model transit depth would overestimate the observed transit depth when both contributions are included. Hence a self-consistent model for the source of atoms, as discussed in this paper, is required to understand the combined ...
21. Galaxy Evolution Agenda The Monty Hall Problem/Paradox 21.1
... • What do observations of galaxy clusters tell us about the role of galaxy interactions? • Observations of clusters of galaxies support the idea that at least some galaxies are shaped by collisions. Elliptical galaxies are more common in the centers of clusters — where collisions also are more commo ...
... • What do observations of galaxy clusters tell us about the role of galaxy interactions? • Observations of clusters of galaxies support the idea that at least some galaxies are shaped by collisions. Elliptical galaxies are more common in the centers of clusters — where collisions also are more commo ...
Indications for an influence of Hot Jupiters
... of two lower than in the previous full band (0.2-5 keV) observations performed with XMM-Newton. This is not surprising, because τ Boo A’s spectrum has been found to have a mean coronal temperature of T = 3 MK in the XMM-Newton observations, which corresponds to a flux reduction of ca. 50% when movin ...
... of two lower than in the previous full band (0.2-5 keV) observations performed with XMM-Newton. This is not surprising, because τ Boo A’s spectrum has been found to have a mean coronal temperature of T = 3 MK in the XMM-Newton observations, which corresponds to a flux reduction of ca. 50% when movin ...
Nucleosynthesis and Chemical Evolution of Oxygen
... bi-cycle achieves a steady state. The 1H converts into 4He and the oxygen isotopes convert into 14N. After complete CNO burning, 4He and 14N are enriched while 12C and 16,17,18O are all depleted (Figure 1). Nevertheless, if the CNO cycling is not complete or the burning happens at a lower temperatu ...
... bi-cycle achieves a steady state. The 1H converts into 4He and the oxygen isotopes convert into 14N. After complete CNO burning, 4He and 14N are enriched while 12C and 16,17,18O are all depleted (Figure 1). Nevertheless, if the CNO cycling is not complete or the burning happens at a lower temperatu ...
- ANU Repository
... and is essentially zero at 4 R⊕ , although we identify three giant planet candidates other than the previously confirmed Kepler-45b. There is suggestive but not significant evidence that the radius distribution varies with orbital period. The distribution with logarithmic orbital period is flat except ...
... and is essentially zero at 4 R⊕ , although we identify three giant planet candidates other than the previously confirmed Kepler-45b. There is suggestive but not significant evidence that the radius distribution varies with orbital period. The distribution with logarithmic orbital period is flat except ...
Observational studies of stellar rotation
... The oldest method used to measure stellar rotation consists in monitoring the visibility of magnetic spots on the stellar surface. In the Western world, Galileo Galilei was amongst the first observers of the early 17th century to provide an estimate of the Sun’s rotational period by observing the su ...
... The oldest method used to measure stellar rotation consists in monitoring the visibility of magnetic spots on the stellar surface. In the Western world, Galileo Galilei was amongst the first observers of the early 17th century to provide an estimate of the Sun’s rotational period by observing the su ...
