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The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the Extended Baryon Oscillation Spectroscopic Survey and from the Second Phase of the Apache Point…
- Bela Abolfathi, D. Aguado, H. Zou
- Physics
- 28 July 2017
The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in operation since 2014 July. This paper describes the second data release from this phase, and the 14th from SDSS overall…
Cosmic-Ray Acceleration at the Forward Shock in Tycho’s Supernova Remnant: Evidence from Chandra X-Ray Observations
- J. S. Warren, J. Hughes, P. Slane
- Physics
- 20 July 2005
We present evidence for cosmic-ray acceleration at the forward shock in Tycho's supernova remnant (SNR) from three X-ray observables: (1) the proximity of the contact discontinuity to the forward…
Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies and the Distant Universe
- M. Blanton, M. Bershady, H. Zou
- Physics
- 28 February 2017
We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing…
Constraints on the physics of type ia supernovae from the x-ray spectrum of the tycho supernova remnant
- C. Badenes, K. Borkowski, J. Hughes, U. Hwang, E. Bravo
- Physics
- 4 November 2005
We explore the relationship between the models for progenitor systems of Type Ia supernovae and the properties of the supernova remnants that evolve after the explosion. Most models for Type Ia…
The 13th Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-IV Survey Mapping Nearby Galaxies at Apache Point Observatory
- S. C. F. D. Albareti, C. Prieto, H. Zou
- Physics
- 5 August 2016
The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) began observations in 2014 July. It pursues three core programs: the Apache Point Observatory Galactic Evolution Experiment 2…
The Persistence of Memory, or How the X-Ray Spectrum of SNR 0509–67.5 Reveals the Brightness of Its Parent Type Ia Supernova
- C. Badenes, J. Hughes, G. Cassam-Chenai, E. Bravo
- Physics
- 30 January 2008
We examine the dynamics and X-ray spectrum of the young Type Ia supernova remnant 0509–67.5 in the context of the recent results obtained from the optical spectroscopy of its light echo. Our goal is…
The 16th Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra
- Romina Ahumada, C. Prieto, H. Zou
- Physics
- 5 December 2019
This paper documents the sixteenth data release (DR16) from the Sloan Digital Sky Surveys; the fourth and penultimate from the fourth phase (SDSS-IV). This will be the first release of data from the…
The Hot and Energetic Universe: A White Paper presenting the science theme motivating the Athena+ mission
- K. Nandra, D. Barret, I. Zhuravleva
- Physics
- 1 June 2013
This White Paper, submitted to the recent ESA call for science themes to define its future large missions, advocates the need for a transformational leap in our understanding of two key questions in…
Are the Models for Type Ia Supernova Progenitors Consistent with the Properties of Supernova Remnants
- C. Badenes, J. Hughes, E. Bravo, N. Langer
- Physics
- 13 March 2007
We explore the relationship between the models for progenitor systems of Type Ia supernovae and the properties of the supernova remnants that evolve after the explosion. Most models for Type Ia…
EVIDENCE FOR PARTICLE ACCELERATION TO THE KNEE OF THE COSMIC RAY SPECTRUM IN TYCHO'S SUPERNOVA REMNANT
- K. Eriksen, J. Hughes, P. Slane
- Physics
- 7 January 2011
Supernova remnants (SNRs) have long been assumed to be the source of cosmic rays (CRs) up to the knee of the CR spectrum at 1015 eV, accelerating particles to relativistic energies in their blast…
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