TY  - JOUR
A1  - Aseev, Nikita
A1  - Shprits, Yuri
A1  - Drozdov, Alexander
A1  - Kellerman, Adam C.
A1  - Usanova, Maria E.
A1  - Wang, D.
A1  - Zhelavskaya, Irina
T1  - Signatures of Ultrarelativistic Electron Loss in the Heart of the Outer Radiation Belt Measured by Van Allen Probes
JF  - Journal of geophysical research : Space physics
N2  - Up until recently, signatures of the ultrarelativistic electron loss driven by electromagnetic ion cyclotron (EMIC) waves in the Earth's outer radiation belt have been limited to direct or indirect measurements of electron precipitation or the narrowing of normalized pitch angle distributions in the heart of the belt. In this study, we demonstrate additional observational evidence of ultrarelativistic electron loss that can be driven by resonant interaction with EMIC waves. We analyzed the profiles derived from Van Allen Probe particle data as a function of time and three adiabatic invariants between 9 October and 29 November 2012. New local minimums in the profiles are accompanied by the narrowing of normalized pitch angle distributions and ground‐based detection of EMIC waves. Such a correlation may be indicative of ultrarelativistic electron precipitation into the Earth's atmosphere caused by resonance with EMIC waves.
Y1  - 2017
U6  - https://doi.org/10.1002/2017JA024485
SN  - 2169-9380
SN  - 2169-9402
VL  - 122
SP  - 10102
EP  - 10111
PB  - American Geophysical Union
CY  - Washington
ER  - 
TY  - JOUR
A1  - Townsley, Leisa K.
A1  - Broos, Patrick S.
A1  - Corcoran, Michael F.
A1  - Feigelson, Eric D.
A1  - Gagne, Marc
A1  - Montmerle, Thierry
A1  - Oey, M. S.
A1  - Smith, Nathan
A1  - Garmire, Gordon P.
A1  - Getman, Konstantin V.
A1  - Povich, Matthew S.
A1  - Evans, Nancy Remage
A1  - Naze, Yael
A1  - Parkin, E. R.
A1  - Preibisch, Thomas
A1  - Wang, Junfeng
A1  - Wou, Scott J.
A1  - Chu, You-Hua
A1  - Cohen, David H.
A1  - Gruendl, Robert A.
A1  - Hamaguchi, Kenji
A1  - King, Robert R.
A1  - Mac Low, Mordecai-Mark
A1  - McCaughrean, Mark J.
A1  - Moffat, Anthony F. J.
A1  - Oskinova, Lidia M.
A1  - Pittard, Julian M.
A1  - Stassun, Keivan G.
A1  - Ud-Doula, Asif
A1  - Walborn, Nolan R.
A1  - Waldron, Wayne L.
A1  - Churchwell, Ed
A1  - Nictiols, J. S.
A1  - Owocki, Stanley P.
A1  - Schulz, Norbert S.
T1  - An introduction to the chandra carina complex project
JF  - The astrophysical journal : an international review of spectroscopy and astronomical physics ; Supplement series
N2  - The Great Nebula in Carina provides an exceptional view into the violent massive star formation and feedback that typifies giant H II regions and starburst galaxies. We have mapped the Carina star-forming complex in X-rays, using archival Chandra data and a mosaic of 20 new 60 ks pointings using the Chandra X-ray Observatory's Advanced CCD Imaging Spectrometer, as a testbed for understanding recent and ongoing star formation and to probe Carina's regions of bright diffuse X-ray emission. This study has yielded a catalog of properties of > 14,000 X-ray point sources;> 9800 of them have multiwavelength counterparts. Using Chandra's unsurpassed X-ray spatial resolution, we have separated these point sources from the extensive, spatially-complex diffuse emission that pervades the region; X-ray properties of this diffuse emission suggest that it traces feedback from Carina's massive stars. In this introductory paper, we motivate the survey design, describe the Chandra observations, and present some simple results, providing a foundation for the 15 papers that follow in this special issue and that present detailed catalogs, methods, and science results.
KW  - H II regions
KW  - stars: massive
KW  - stars: pre-main sequence
KW  - X-rays: individual (Carina)
KW  - X-rays: ISM
KW  - X-rays: stars
Y1  - 2011
U6  - https://doi.org/10.1088/0067-0049/194/1/1
SN  - 0067-0049
VL  - 194
IS  - 1
PB  - IOP Publ. Ltd.
CY  - Bristol
ER  -