Science Archives Publication System

On the origin of the iron fluorescent line emission from the Galactic Ridge

DOI: 10.1016/j.newast.2014.10.008 Bibcode: 2015NewA...36...64E

Eze, R. N. C.

The Galactic Ridge X-ray Emission (GRXE) spectrum has strong iron emission lines at 6.4, 6.7, and 7.0 keV, each corresponding to the neutral (or low-ionized), He-like, and H-like iron ions. The 6.4 keV fluorescence line is due to irradiation of neutral (or low ionized) material (iron) by hard X-ray sources, indicating uniform presence of the cold …

2015 • New Astronomy

Suzaku 2

Morphology and Structure of Ultraluminous Infrared Galaxies at z ∼ 2 in the EGS Field

DOI: 10.1016/j.chinastron.2015.04.002 Bibcode: 2015ChA&A..39..156F

Kong, Xu; Chen, Yang; Fang, Guan-Wen +1 more

Using the high-resolution F160W images observed by the HST WFC3 (Hubble Space Telescope Wide Field Camera 3) in the CANDELS-EGS (Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey-Extended Groth Strip) field, we have studied the morphological and structural features of 9 ultraluminous infrared galaxies (ULIRGs) at z ∼ 2. We find a wide…

2015 • Chinese Astronomy and Astrophysics

eHST 2

Solar and Galactic Cosmic Rays Observed by SOHO

DOI: 10.48550/arXiv.1505.07952 Bibcode: 2015CEAB...39..109C

Curdt, W.; Fleck, B.

Both the Cosmic Ray Flux (CRF) and Solar Energetic Particles (SEPs) have left an imprint on SOHO technical systems. While the solar array efficiency degraded irreversibly down to ≈77% of its original level over roughly 1 1/2 solar cycles, Single Event Upsets (SEUs) in the solid state recorder (SSR) have been reversed by the memory protection mecha…

2015 • Central European Astrophysical Bulletin

SOHO 2

ESA multibody simulator for spacecrafts' ascent and landing in a microgravity environment

DOI: 10.1007/s12567-015-0081-5 Bibcode: 2015CEAS....7..335T

Toso, Mario; Pennestrì, Ettore; Rossi, Valerio

The investigation of planets, moons and small bodies, including comets and asteroids can contribute substantially to our understanding of the formation and history of the solar system. In situ observations by landers play an important role in this field: for example, the Rosetta Lander Philae has been the first spacecraft to accomplish a soft touc…

2015 • CEAS Space Journal

Rosetta 2

Global frequency distributions of pulsations driven by sharp decrease of solar wind dynamic pressure

DOI: 10.1007/s11430-015-5168-5 Bibcode: 2015ScChD..58.2211W

Wang, Zhi Qiang

On 24 August 2005, an impulse of solar wind dynamic pressure (Psw) hit the magnetosphere. Using the high resolution geomagnetic field data from 15 ground stations and the data from Geotail and TC-1, we studied the geomagnetic pulsations at auroral latitudes driven by the sharp decrease of Psw at the trailing edge of the impulse. The results show t…

2015 • Science China Earth Sciences

DoubleStar 2

Ultraviolet spectral behavior of AO Psc and V1223 Sgr from the HST and IUE satellites

DOI: 10.1007/s10509-014-2196-0 Bibcode: 2015Ap&SS.356...43S

Sanad, M. R.

We present a spectroscopic study of two intermediate polar systems, AO Psc and V1223 Sgr observed with the Hubble Space Telescope Space Telescope Imaging Spectrograph (HST STIS) and International Ultraviolet Explorer (IUE) during the period 1980–2000. The reddening of two systems is determined from the 2200 Å feature. The ultraviolet emission line…

2015 • Astrophysics and Space Science

IUE eHST 2

Powerful non-geoeffective interplanetary disturbance of July 2012 observed by muon hodoscope URAGAN

DOI: 10.1016/j.asr.2015.03.002 Bibcode: 2015AdSpR..56.2833A

Veselovsky, I. S.; Astapov, I. I.; Barbashina, N. S. +2 more

The most powerful coronal mass ejection of the 24th solar cycle took place on the opposite side of the Sun on July 23, 2012 and had no geomagnetic consequences. Nevertheless, as a result of passing of the ejection through the heliosphere, variations of galactic cosmic rays flux were observed on the Earth. These variations were registered by the mu…

2015 • Advances in Space Research

SOHO 2

A Warp in Progress: H I and Radio Continuum Observations of the Spiral NGC 3145

DOI: 10.1088/0004-6256/150/3/65 Bibcode: 2015AJ....150...65K

Brinks, Elias; Struck, Curtis; Elmegreen, Bruce G. +2 more

VLA H i observations and λ6 cm radio continuum observations are presented of the barred-spiral galaxy NGC 3145. In optical images NGC 3145 has stellar arms that appear to cross, forming “X”-features. Our radio continuum observations rule out shock fronts at three of the four “X”-features, and our H i data provide evidence of gas motions perpendicu…

2015 • The Astronomical Journal

eHST 2

Planetary host stars: evaluating uncertainties in cool model atmospheres

DOI: 10.1093/mnras/stv613 Bibcode: 2015MNRAS.450..160B

Scholz, A.; Helling, Ch.; Bozhinova, I.

M-dwarfs are emerging in the literature as promising targets for detecting low-mass, Earth-like planets. An important step in this process is to determine the stellar parameters of the M-dwarf host star as accurately as possible. Different well-tested stellar model atmosphere simulations from different groups are widely applied to undertake this t…

2015 • Monthly Notices of the Royal Astronomical Society

eHST 2

Angular momentum and Philae's descent

DOI: 10.1119/1.4935754 Bibcode: 2015PhTea..53..516B

Blanco, Philip

2015 • The Physics Teacher

Rosetta 2