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Supernova remnant energetics and magnetars: no evidence in favour of millisecond proto-neutron stars
- J. Vink, Lucien Kuiper Utrecht University, The Netherlands., Sron Netherlands Institute for Space Research, Utrecht
- Physics
- 9 April 2006
It is generally accepted that anomalous X-ray pulsars (AXPs) and soft gamma-ray repeaters (SGRs) are magnetars, i.e. neutron stars with extremely high surface magnetic fields (B > 1014 G). The origin…
ALMA HINTS AT THE PRESENCE OF TWO COMPANIONS IN THE DISK AROUND HD 100546
- C. Walsh, A. Juhász, Nasa Ames Research Center
- Physics, Geology
- 26 May 2014
HD 100546 is a well-studied Herbig Be star-disk system that likely hosts a close-in companion with compelling observational evidence for an embedded protoplanet at 68 AU. We present Atacama Large…
The X-ray Spectrum and Global Structure of the Stellar Wind in VELA X-1
- M. Sako, D. Liedahl, S. Kahn, F. P. C. A. Laboratory, Lawrence Livermore National Laboratory, Sron Netherlands Institute for Space Research
- Physics
- 21 July 1999
We present a quantitative analysis of the X-ray spectrum of the eclipsing high mass X-ray binary Vela X-1 (4U 0900-40) using archival data from the ASCA Solid-State Imaging Spectrometer. The…
Resolving Protoplanetary Disks at Millimeter Wavelengths by CARMA
- W. Kwon, L. Looney, U. Berkeley
- Physics, Geology
- 11 June 2015
We present continuum observations at 1.3 and 2.7 mm using the Combined Array for Research in Millimeter-wave Astronomy (CARMA) toward six protoplanetary disks in the Taurus molecular cloud: CI Tau,…
THE c2d SPITZER SPECTROSCOPIC SURVEY OF ICES AROUND LOW-MASS YOUNG STELLAR OBJECTS. IV. NH3 AND CH3OH
- S. Bottinelli, A. Boogert, Sron Netherlands Institute for Space Research
- Physics
- 12 May 2010
NH_3 and CH_3OH are key molecules in astrochemical networks leading to the formation of more complex N- and
O-bearing molecules, such as CH3CN and CH3OCH3. Despite a number of recent studies, little…
“TNOs are Cool”: A survey of the trans-Neptunian region - X. Analysis of classical Kuiper belt objects from Herschel and Spitzer observations
- E. Vilenius, C. Kiss, U. Provence
- Physics, Geology
- 25 March 2014
Context. The Kuiper belt is formed of planetesimals which failed to grow to planets and its dynamical structure has been affected by Neptune. The classical Kuiper belt contains objects both from a…
Evidence for a Heated Gas Bubble inside the “Cooling Flow” Region of MKW 3s
- P. Mazzotta, J. Kaastra, Oss. Astronomico di Roma
- Physics
- 29 July 2001
We report on the deep Chandra observation of the central r = 200 kpc region of the cluster of galaxies MKW 3s, which was previously identified as a moderate cooling flow cluster. The Chandra image…
“TNOs are Cool”: A survey of the trans-Neptunian region
- E. Vilenius, J. Stansberry, Marseille
- Geology, PhysicsAstronomy & Astrophysics
- 1 April 2012
Context. A group of trans-Neptunian objects (TNOs) are dynamically related to the dwarf planet 136108 Haumea. Ten of them show strong indications of water ice on their surfaces, are assumed to have…
The slow spin of the young sub-stellar companion GQ Lupi b and its orbital configuration
- H. Schwarz, C. Ginski, Nasa Sagan Fellow
- Physics, Geology
- 30 June 2016
The spin of a planet or brown dwarf is related to the accretion process, and therefore studying spin can help promote our understanding of the formation of such objects. We present the projected…
LABORATORY MEASUREMENTS COMPELLINGLY SUPPORT A CHARGE-EXCHANGE MECHANISM FOR THE “DARK MATTER” ∼3.5 keV X-Ray LINE
- C. Shah, S. Dobrodey, Leiden University
- Physics
- 16 August 2016
The reported observations of an unidentified X-ray line feature at ~3.5 keV have driven a lively discussion about its possible dark matter origin. Motivated by this, we have measured the K-shell…
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