Science Archives Publication System

A Chandra-HETG View of MCG +8-11-11

DOI: 10.1088/0004-637X/797/1/12 Bibcode: 2014ApJ...797...12M

Nowak, M. A.; Murphy, K. D.

We present a spectral analysis of the 118 ks Chandra High Energy Transmission Gratings (HETG) observation of the X-ray bright Seyfert 1.5 galaxy MCG +8-11-11, in conjunction with 100 ks of archival Suzaku data, aimed at investigating the signatures of warm absorption and Compton reflection reported from previous Suzaku and XMM-Newton studies of th…

2014 • The Astrophysical Journal

Suzaku 10

Herschel and Spitzer Observations of Slowly Rotating, Nearby Isolated Neutron Stars

DOI: 10.1088/0067-0049/215/1/3 Bibcode: 2014ApJS..215....3P

Pavlov, G. G.; Wachter, S.; Posselt, B. +1 more

Supernova fallback disks around neutron stars have been suspected to influence the evolution of the diverse neutron star populations. Slowly rotating neutron stars are the most promising places to find such disks. Searching for the cold and warm debris of old fallback disks, we carried out Herschel PACS (70 µm, 160 µm) and Spitzer IRAC…

2014 • The Astrophysical Journal Supplement Series

Herschel 10

MIDACO software performance on interplanetary trajectory benchmarks

DOI: 10.1016/j.asr.2014.05.002 Bibcode: 2014AdSpR..54..744S

Schlueter, Martin

A numerical study of the MIDACO optimization software on the well known GTOP benchmark set, published by the European Space Agency (ESA), is presented. The GTOP database provides trajectory models of real-world interplanetary space missions such as Cassini, Messenger or Rosetta. The trajectory models are formulated as constrained nonlinear optimiz…

2014 • Advances in Space Research

Rosetta 10

First spectrally-resolved H₂ observations towards HH 54 . Low H₂O abundance in shocks

DOI: 10.1051/0004-6361/201424748 Bibcode: 2014A&A...569L...8S

Liseau, R.; Codella, C.; van Dishoeck, E. F. +11 more

Context. Herschel observations suggest that the H₂O distribution in outflows from low-mass stars resembles the H₂ emission. It is still unclear which of the different excitation components that characterise the mid- and near-IR H₂ distribution is associated with H₂O.
Aims: The aim is to spectrally r…

2014 • Astronomy and Astrophysics

Herschel 10

Radial distribution of magnetic field in earth magnetotail current sheet

DOI: 10.1016/j.pss.2014.07.014 Bibcode: 2014P&SS..103..273R

Petrukovich, A. A.; Dunlop, M. W.; Baumjohann, W. +4 more

Knowing the magnetic field distribution in the magnetotail current sheet (CS) is essential for exploring magnetotail dynamics. In this study, using a joint dataset of Cluster/TC-1, the radial profile of the magnetic field in the magnetotail CS with radial distances covering 8<r<20R_E under different geomagnetic activity states (i.e…

2014 • Planetary and Space Science

Cluster 10

A non-LTE spectral analysis of the ³He and ⁴He isotopes in the HgMn star κ Cancri

DOI: 10.1051/0004-6361/201425037 Bibcode: 2014A&A...572A.112M

Przybilla, Norbert; Maza, Natalia L.; Nieva, María-Fernanda

Aims: We present a pilot study on non-local thermodynamic equilibrium (NLTE) line-formation computations for the isotopes ³He and ⁴He in the mercury-manganese star κ Cancri. The impact of NLTE effects on the determination of isotopic abundances and the vertical stratification of helium in the atmosphere is investigated. …

2014 • Astronomy and Astrophysics

IUE 10

Photometric investigation of the K-type extremely shallow contact binary V1799 Orion

DOI: 10.1088/1674-4527/14/9/006 Bibcode: 2014RAA....14.1157L

Qian, Sheng-Bang; Liao, Wen-Ping; He, Jia-Jia +3 more

New multi-color light curves of the very short period K-type eclipsing binary V1799 Ori were obtained and analyzed with the Wilson-Devinney code. The photometric solutions reveal that the system is a W-type shallow-contact binary with a mass ratio of q = 1.335(±0.005) and a degree of contact of about f = 3.5(±1.1)%. In general, the results are in …

2014 • Research in Astronomy and Astrophysics

INTEGRAL 10

Stellar Encounter Driven Red-giant Star Mass Loss in Globular Clusters

DOI: 10.1088/0004-637X/789/1/28 Bibcode: 2014ApJ...789...28P

Chung, Chul; Pasquato, Mario; Lee, Young-Wook +5 more

Globular cluster (GC) color-magnitude diagrams (CMDs) are reasonably well understood in terms of standard stellar evolution. However, there are still some open issues, such as fully accounting for the horizontal branch (HB) morphology in terms of chemical and dynamical parameters. Mass loss on the red giant branch (RGB) shapes the mass distributio…

2014 • The Astrophysical Journal

eHST 10

Dust charging in the Enceladus torus

DOI: 10.1002/2013JA019213 Bibcode: 2014JGRA..119..221Y

Yaroshenko, V. V.; Lühr, H.; Miloch, W. J.

Employing the parameter space, consistent with available Cassini data, dust charging is studied in the near-Enceladus plasma with special focus on the region close to the moon's plume. The emphasis is on the role of dust size distribution and grain density, the electron temperature, fraction of the hot electrons, and multi-ion composition includin…

2014 • Journal of Geophysical Research (Space Physics)

Cassini 10

Turbulent dynamics inside the cavity of hot flow anomaly

DOI: 10.1016/j.pss.2014.01.001 Bibcode: 2014P&SS...92...24K

Dandouras, I.; Facskó, G.; Kovács, P.

In this paper the turbulent dynamics of a hot flow anomaly (HFA) event is investigated. The HFAs are transient plasma disturbances generated by the interaction of the bow shock (BS) and a tangential discontinuity (TD) embedded in the solar wind. The typical changes of the plasma parameters inside HFAs (increased plasma temperature, low bulk veloci…

2014 • Planetary and Space Science

Cluster 10