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Double Compact Objects I: The Significance Of The Common Envelope On Merger Rates
Double Compact Objects Significance Common Envelope Merger Rates
2012/2/23
The development of gravitational wave observatories (Advanced LIGO/Virgo, Einstein Telescope) is proceeding apace, and the direct detection of gravitational waves should be imminent. The last decade o...
The colours of BL Lac objects: a new approach to their classification
galaxies:active:BL Lac objects
2012/2/23
We selected a sample of 437 BL Lac objects, taken from the RomaBZCat catalogue, for which spectroscopic information and SDSS photometry is available. We propose a new classification of BL Lacs in whic...
Substellar Objects in Nearby Young Clusters (SONYC) II: The Brown Dwarf Population of Rho Ophiuchi
Substellar Objects Nearby Young Clusters
2011/1/11
SONYC - Substellar Objects in Nearby Young Clusters - is a survey program to investigate the frequency and properties of brown dwarfs down to masses below the Deuterium burning limit in nearby star fo...
Runaway Growth During Planet Formation: Explaining the Size Distribution of Large Kuiper Belt Objects
circumstellar matter Kuiper belt planetary systems general planets and satellites
2010/11/9
Runway growth is an important stage in planet formation during which large protoplanets form,
while most of the initial mass remains in small planetesimals. The amount of mass converted into large pr...
We present the results of spectroscopy of 71 objects with steep and ultra-steep spectra (α < −0.9, S / ν ) from the“Big Trio” (RATAN-600–VLA–BTA) project, performed with the “Scorpio” spectrogra...
Ice chemistry in massive Young Stellar Objects: the role of metallicity
astrochemistry – circumstellar matter – galaxies individual (LMC, SMC) –Magellanic Clouds – stars formation – stars: protostars
2010/11/15
We present the comparison of the three most important ice constituents (water, CO and CO2)
in the envelopes of massive Young Stellar Objects (YSOs), in environments of differentmetallicities:the Gala...
Parallaxes of Southern Extremely Cool objects - I: Targets, Proper motions and first results
Parallaxes of Southern Extremely Cool objects Proper motions first results
2010/11/11
We present results from the PARallaxes of Southern Extremely Cool objects (PARSEC)program, an observational program begun in April 2007 to determine parallaxes for 122 L and 28 T southern hemisphere d...
The interactions of winds from massive young stellar objects
interactions of winds massive young stellar objects
2010/11/10
The supersonic stellar and disk winds possessed by massive young stellar objects will produce
shocks when they collide against the interior of a pre-existing bipolar cavity (resulting from an earlier...
Modelling the shapes of the largest gravitationally bound objects
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2011/1/4
We combine the physics of the ellipsoidal collapse model with the excursion set theory to study the shapes of dark matter halos. In particular, we develop an analytic approximation to the nonlinear ev...
Photochemistry in the inner layers of clumpy circumstellar envelopes: formation of water in C-rich objects and of C-bearing molecules in O-rich objects
Galaxy Astrophysics (astro-ph.GA)
2010/12/28
A mechanism based on the penetration of interstellar ultraviolet photons into the inner layers of clumpy circumstellar envelopes around AGB stars is proposed to explain the non-equilibrium chemistry o...
Polarimetric Remote Sensing of Solar System Objects
Earth and Planetary Astrophysics (astro-ph.EP) Atmospheric and Oceanic Physics (physics.ao-ph) Instrumentation and Detectors (physics.ins-det) Optics (physics.optics)
2010/12/24
This book outlines the basic physical principles and practical methods of polarimetric remote sensing of Solar System objects and summarizes numerous advanced applications of polarimetry in geophysics...
Extracting Information from the Gravitational Redshift of Compact Rotating Objects
Maximal angular velocity—stars neutron—stars rotation.
2010/9/15
Essential macroscopic internal properties of compact objects can be related to each other with the help of General Relativity. A somewhat familiar example is the relationship between the compactness M...
RADIO DETECTION OF 18 RASS BL LAC OBJECTS
Galaxies: active BL Lacertae objects: general quasars: general
2010/10/29
We present the radio detection of 18 BL Lac objects from our survey of over 575 deg2 of sky. These 18 objects are located within 2000 of the X-ray position, of which 11 have a measured red-shift. All ...
High time resolution spectroscopy of short period Variable objects
spectroscopy Variable objects
2009/6/17
High time resolution spectroscopy of short period Variable objects。
Measuring the masses of compact objects in low-mass X-ray binaries
compact objects low-mass X-ray binaries
2009/6/17
Measuring the masses of compact objects in low-mass X-ray binaries。