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Surprising new class of 'hypervelocity stars' discovered escaping the galaxy（图）
hypervelocity stars galaxy
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2014/3/17
Top and side views of the Milky Way galaxy show the location of four of the new class of hypervelocity stars. These are sun-like stars that are moving at speeds of more than a million miles per hour r...
Narrow-line Seyfert 1 galaxies: an amasing class of AGN
Masers – Galaxies: active – Galaxies: nuclei – Galaxies: Seyfert – Radio lines: galaxies
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2011/10/21
Narrow-line Seyfert 1 (NLS1) galaxies are a class of active galactic nuclei (AGN) that have all the properties of type 1 Seyfert galaxies but show peculiar characteristics, including the narrowest Bal...
A 95 GHz Class I Methanol Maser Survey Toward GLIMPSE Extended Green Objects (EGOs)
Maser Survey GLIMPSE Extended Green Objects
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2011/10/9
We report the results of a systematic survey for 95 GHz class I methanol masers towards a new sample of 192 massive young stellar object (MYSO) candidates associated with ongoing outflows (known as ex...
Deep imaging of Fanaroff-Riley Class I radio galaxies with lobes
galaxies: jets – radio continuum:general – magnetic fi elds – polarization
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2011/10/8
We present deep, high-resolution imaging of the nearby Fanaroff-Riley Class I (FR I) radio galaxies NGC 193, B2 0206+35, B2 0755+37 and M 84 at frequencies of 4.9 and 1.4 GHz using new and archival mu...
Multi-Wavelength Observations of a Flux Rope Failed in the Eruption and Associated M-Class Flare from NOAA AR 11045
coronal loops magnetic eld ux rope magnetic reconnection
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2011/9/27
We present the multi-wavelength observations of a flux rope that was trying to erupt from NOAA AR 11045 and the associated M-class solar flare on 12 February 2010 using space and ground based observat...
PTF10nvg: An Outbursting Class I Protostar in the Pelican/North American Nebula
stars formation – stars pre-main sequence
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2010/11/15
During a synoptic survey of the North American Nebula region, the Palomar Transient Factory
(PTF) detected an optical outburst (dubbed PTF10nvg) associated with the previously unstudied
flat or risi...
The final candidate from the JVAS/CLASS search for 6 arcsec to 15 arcsec image separation lensing
gravitational lensing strong - galaxies clusters general - dark matter
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2010/11/9
A search for 6 arcsec to 15 arcsec image separation lensing in the Jodrell Bank–Very Large
Array Astrometric Survey (JVAS) and the Cosmic Lens All-Sky Survey (CLASS) by Phillips
et al. found thirtee...
A distinct peak-flux distribution of the third class of gamma-ray bursts: A possible signature of X-ray flashes?
High Energy Astrophysical Phenomena (astro-ph.HE) Cosmology and Extragalactic Astrophysics (astro-ph.CO)
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2010/12/28
Gamma-ray bursts are the most luminous events in the Universe. Going beyond the short-long classification scheme we work in the context of three burst populations with the third group of intermediate ...
Global causal propagator for the Klein-Gordon equation on a class of supersymmetric AdS backgrounds
Klein-Gordon equation supersymmetric AdS backgrounds spectral-theoretic techniques
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2010/3/19
We analyze the Cauchy problem for the Klein-Gordon equation on the type IIB supergravity backgrounds $AdS^5 \times Y^{p,q}$, where $Y^{p,q}$ is any of the Sasaki-Einstein 5-manifolds recently discover...
The mysterious of?p class and the magnetic o-star _1 ori c：confronting observations
magnetic o-star _1 ori c confronting observations
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2009/7/10
The mysterious of?p class and the magnetic o-star _1 ori c：confronting observations。
El Observatorio de San Pedro Mártir：A World-Class Site for Large Telescopes
San Pedro Mártir Large Telescopes World-Class Site
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2009/7/1
El Observatorio de San Pedro Mártir：A World-Class Site for Large Telescopes。
Kinematics of metal-rich circumnuclear regions from future 8-M class observations
metal-rich circumnuclear regions future 8-M class observations
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2009/7/1
Kinematics of metal-rich circumnuclear regions from future 8-M class observations。
Doppler Tomography of Cataclysmic Variables with a 6.5-m class Telescope
Doppler Tomography 6.5-m class Telescope Cataclysmic Variables
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2009/7/1
Doppler Tomography of Cataclysmic Variables with a 6.5-m class Telescope。
An Efficient Monte Carlo Algorithm for a Restricted Class of Scattering Problems in Radiation Transfer
Monte Carlo Algorithm Scattering Problems Radiation Transfer
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2009/6/9
An Efficient Monte Carlo Algorithm for a Restricted Class of Scattering Problems in Radiation Transfer。
CLASS B 1359+154：Modelling Lensing by a Group of Galaxies
Gravitational lensing multiple-imagin individual systems
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2009/5/19
The recently discovered gravitationally lensed system CLASS
B1359C154 appears to have six detectable images of a single background
source at a redshift of 3:235. A group of galaxies acts as the lens...