搜索结果: 1-15 共查到“高能天体物理学 Emission”相关记录28条 . 查询时间(0.109 秒)
Discovery of the correspondence between intra-cluster radio emission and a high pressure region detected through the Sunyaev-Zel'dovich effect
galaxies: clusters: individual: RX J1347-1145 – radio continuum: galaxies – X-rays: galaxies: clusters – cosmic back- ground radiation
2011/10/18
We analyzed new 237 MHz and 614 MHz GMRT data of the most X-ray luminous galaxy cluster, RX J1347-1145. Our radio results are compared with the MUSTANG 90 GHz Sunyaev-Zel'dovich effect map and with re...
H_2^{16}O and H_2^{18}O Maser Emission from Gas-Dust Clouds
astrophysical masers heavy-oxygen water star-forming regions active galactic nuclei
2011/10/11
The collisional pumping of H_2^{16}O and H_2^{18}O masers in hot dense gas-dust clouds has been simulated numerically. New data on the rate coefficients for collisional transitions from Faure et al. (...
Constraining GRB Emission Physics with Extensive Early-Time, Multiband Follow-up
Constraining Emission Physics Extensive Early-Time Multiband Follow-up
2011/10/10
Understanding the origin and diversity of emission processes responsible for Gamma-ray Bursts (GRBs) remains a pressing challenge. While prompt and contemporaneous panchromatic observations have the p...
Infrared and radio study of the W43 cluster: resolved binaries and non-thermal emission
Stars: binaries – Stars: Wolf-Rayet – X-rays: stars – Radio continuum: stars – Gamma rays: stars – Infrared: stars
2011/10/9
Context: The recent detection of very high-energy (VHE) gamma-ray emission from the direction of the W43 star-forming region prompted us to investigate its stellar population in detail in an attempt t...
Dense Molecular Gas Excitation at High Redshift: Detection of HCO+(J=4-3) Emission in the Cloverleaf Quasar
galaxies active — galaxies starburst — galaxies formation — galaxies
2010/11/10
We report the detection of HCO+(J=4→3) emission in the Cloverleaf Quasar at z=2.56, using
the IRAM Plateau de Bure Interferometer. HCO+ emission is a star formation indicator similar
to HCN, tracing...
On the Implications of Late Internal Dissipation for Shallow-Decay Afterglow Emission and Associated High-Energy Gamma-Ray Signals
gamma-rays burst general— gamma rays theory— radiation mechanisms non-thermal
2010/11/10
The origin of the shallow-decay emission during early X-ray afterglows has been an open issue since the launch of the Swift satellite. One of the appealing models is the late internal dissipation mode...
Compact radio emission in Ultra Luminous X-ray sources
Galaxies general – X-rays general – ISM HII regions
2010/11/10
We present results from our studies of radio emission from selectecd Ultra Luminous X-ray (ULX) sources, using archival Giant Metrewave Radio Telescope (GMRT) data and new European VLBI Network (EVN) ...
The Bolocam Galactic Plane Survey IV: 1.1 and 0.35 mm Dust Continuum Emission in the Galactic Center Region
Galactic Plane Survey Galactic Center Region
2010/11/10
The Bolocam Galactic Plane Survey (BGPS) data for a six square degree region of the Galactic plane containing the Galactic center is analyzed and com-pared to infrared and radio continuum data. The BG...
Structure, Deformations and Gravitational Wave Emission of Magnetars
Structure, Deformations Gravitational Wave Emission of Magnetars
2010/11/15
Neutron stars can have, in some phases of their life, extremely strong magnetic fields, up to 1015−16 G. These objects, named magnetars, could be powerful sources of gravitational waves, since t...
Multi-frequency emission analysis and constraining redshift of 3C 66A
BL Lacertae objects individual galaxies active gamma rays general
2010/11/11
The emission mechanism of TeV blazar 3C 66A is studied by employing the multi-wavelength
observational data. The GeV spectrum observed by Fermi-LAT can’t be explained by pure synchrotron self-Compton...
An unified polar cap/striped wind model for pulsed radio and gamma-ray emission in pulsars
Pulsars general - Radiation mechanisms non-thermal - Gamma rays
2010/11/16
Thanks to the recent discovery by Fermi of about fifty new gamma-ray pulsars, it becomes possible to look for statistical properties of their pulsed high-energy emis-sion, especially their light-curve...
The nature of nuclear Halpha emission in LINERs
Galaxies:active Galaxies:nuclei Galaxies evolution X-ray:galaxies
2010/11/10
To get insight in the nature of the ionized gas in the nuclear region of LINERs we have performed a study of HST Hα imaging of 32 LINERs. The main conclusion from this analysis is that for the large m...
Galactic Cepheids with Spitzer: II. Search for Extended Infrared Emission
Cepheids — infrared stars — stars mass loss
2010/11/16
A deep and detailed examination of 29 classical Cepheids with the Spitzer Space Telescope has revealed three stars with strong nearby extended emission detected in multiple bands which appears to be p...
High-spatial-resolution imaging of thermal emission from debris disks
circumstellar matter infrared stars – planetary systems
2010/11/11
We have obtained sub-arcsec mid-IR images of a sample of debris disks within 100 pc. For our sample of nineteen A-type debris disk candidates chosen for their IR excess, we have resolved, for the firs...
Radio emission from the massive stars in Westerlund 1
Radio emission massive stars in Westerlund 1
2010/11/10
The diverse massive stellar population in the young massive clusterWesterlund 1 (Wd 1)provides an ideal laboratory to observe and constrain mass-loss processes throughout the transitional phase of mas...