Science Archives Publication System

Search for HBr and bromine photochemistry on Venus

DOI: 10.1016/j.icarus.2017.04.016 Bibcode: 2017Icar..293..114K

Krasnopolsky, Vladimir A.; Belyaev, Denis A.

HBr (1-0) R2 2605.8/6.2 cm^-1, the strongest line of the strongest band of HBr, was observed when searching for this species on Venus. The observation was conducted using the NASA IRTF and a high-resolution long-slit spectrograph CSHELL with resolving power of 4 × 10⁴. 101 spectra of Venus were analyzed, and the retrieved HBr …

2017 • Icarus

VenusExpress 7

Initial In-flight Results: The Total Solar Irradiance Monitor on the FY-3C Satellite, an Instrument with a Pointing System

DOI: 10.1007/s11207-016-1027-6 Bibcode: 2017SoPh..292....9W

Wang, Hongrui; Li, Huiduan; Qi, Jin +1 more

The total solar irradiance (TSI) has been recorded daily since October 2013 by the Total Solar Irradiance Monitor (TSIM) onboard the FY-3C satellite, which is mainly designed for Earth observation. The TSIM has a pointing system to perform solar tracking using a sun sensor. The TSI is measured by two electrical substitution radiometers with tracea…

2017 • Solar Physics

SOHO 7

Orbital variations and outbursts of the unusual variable star V1129 Centauri

DOI: 10.1016/j.newast.2017.06.007 Bibcode: 2017NewA...57...51B

Bruch, Albert

The variable star V1129 Cen is classified in the GCVS as being of β Lyr type. Unusual for such stars, it exhibits outbursts roughly once a year, lasting for ∼ 40 days. For this reason, a relationship to the dwarf novae has been suspected. Here, for the first time a detailed analysis of the light curve of the system is presented. Based on observati…

2017 • New Astronomy

Gaia 7

Frequency fluctuations in the solar corona investigated with radio sounding experiments on the spacecraft ROSETTA and MARS EXPRESS in 2010/2011

DOI: 10.1016/j.asr.2017.01.001 Bibcode: 2017AdSpR..59.1652E

Pätzold, M.; Bird, M. K.; Efimov, A. I. +3 more

Coronal radio-sounding experiments were carried out using two-way coherent dual-frequency carrier signals of the ESA spacecraft ROSETTA in 2010 and MARS EXPRESS in 2010/2011. Differential frequency measurements recorded at both NASA and ESA tracking stations (sample rate: 1 Hz) are analyzed in this paper. Spectral analysis of the S-band, X-band, a…

2017 • Advances in Space Research

MEx Rosetta 7

Observational Signatures of a Kink-unstable Coronal Flux Rope Using Hinode/EIS

DOI: 10.3847/1538-4357/aa6d0e Bibcode: 2017ApJ...842...16S

Young, P. R.; Régnier, S.; Verwichte, E. +3 more

The signatures of energy release and energy transport for a kink-unstable coronal flux rope are investigated via forward modeling. Synthetic intensity and Doppler maps are generated from a 3D numerical simulation. The CHIANTI database is used to compute intensities for three Hinode/EIS emission lines that cover the thermal range of the loop. The i…

2017 • The Astrophysical Journal

Hinode 7

The InterPlanetary Network Supplement to the Second Fermi GBM Catalog of Cosmic Gamma-Ray Bursts

DOI: 10.3847/1538-4365/229/2/31 Bibcode: 2017ApJS..229...31H

Zhang, X.; Cline, T.; Hurley, K. +32 more

InterPlanetary Network (IPN) data are presented for the gamma-ray bursts in the second Fermi Gamma-Ray Burst Monitor (GBM) catalog. Of the 462 bursts in that catalog between 2010 July 12 and 2012 July 11, 428, or 93%, were observed by at least 1 other instrument in the 9-spacecraft IPN. Of the 428, the localizations of 165 could be improved by tri…

2017 • The Astrophysical Journal Supplement Series

INTEGRAL 7

High Dense Gas Fraction in a Gas-rich Star-forming Galaxy at z = 1.2

DOI: 10.3847/1538-4357/aa65d2 Bibcode: 2017ApJ...838..136G

Carilli, Chris; Daddi, Emanuele; Dannerbauer, Helmut +3 more

We report observations of dense molecular gas in the star-forming galaxy EGS 13004291 (z = 1.197) using the Plateau de Bure Interferometer. We tentatively detect HCN and HNC J=2\to 1 emission when stacked together at 4σ significance, yielding line luminosities of {L}_HCN(J=2\to 1)}^\prime=(9+/- 3)× {10}⁹ K km s^…

2017 • The Astrophysical Journal

eHST 7

Development of a Marslander with crushable shock absorber by virtual and experimental testing

DOI: 10.1016/j.actaastro.2017.01.023 Bibcode: 2017AcAau.134...65S

Reinhardt, B.; Schröder, Silvio; Brauner, C. +2 more

Since the beginning of space exploration, probes have been sent to other planets or moons with the associated challenge of landing on these bodies. For a soft landing several damping methods like landing legs or airbags have been used. A new and potentially less complex and lighter way to reduce the shock loads at touchdown is the use of a crushab…

2017 • Acta Astronautica

ExoMars-16 7

How to co-add images? I. A new iterative method for image reconstruction of dithered observations

DOI: 10.1088/1674-4527/17/10/100 Bibcode: 2017RAA....17..100W

Wang, Lei; Li, Guo-Liang

By employing the previous Voronoi approach and replacing its nearest neighbor approximation with Drizzle in iterative signal extraction, we develop a fast iterative Drizzle algorithm, named fiDrizzle, to reconstruct the underlying band-limited image from undersampled dithered frames. Compared with the existing iDrizzle, the new algorithm improves …

2017 • Research in Astronomy and Astrophysics

eHST 7

Propagation of Coronal Mass Ejections Observed During the Rising Phase of Solar Cycle 24

DOI: 10.1007/s11207-017-1151-y Bibcode: 2017SoPh..292..133S

Shanmugaraju, A.; Syed Ibrahim, M.; Manoharan, P. K.

In this study, we investigate the interplanetary consequences and travel time details of 58 coronal mass ejections (CMEs) in the Sun-Earth distance. The CMEs considered are halo and partial halo events of width >120 °. These CMEs occurred during 2009 - 2013, in the ascending phase of the Solar Cycle 24. Moreover, they are Earth-directed events …

2017 • Solar Physics

SOHO 7