Science Archives Publication System

Polar and Equatorial Coronal Hole Winds at Solar Minima: From the Heliosphere to the Inner Corona

DOI: 10.1088/0004-637X/781/2/110 Bibcode: 2014ApJ...781..110Z

Zhao, L.; Landi, E.

Fast solar wind can be accelerated from at least two different sources: polar coronal holes and equatorial coronal holes. Little is known about the relationship between the wind coming from these two different latitudes and whether these two subcategories of fast wind evolve in the same way during the solar cycle. Nineteen years of Ulysses observa…

2014 • The Astrophysical Journal

Hinode SOHO Ulysses 13

A Challenging Solar Eruptive Event of 18 November 2003 and the Causes of the 20 November Geomagnetic Superstorm. III. Catastrophe of the Eruptive Filament at a Magnetic Null Point and Formation of an Opposite-Handedness CME

DOI: 10.1007/s11207-014-0536-4 Bibcode: 2014SoPh..289.3747U

Grechnev, V. V.; Chertok, I. M.; Uralov, A. M. +4 more

Our analysis in Papers I and II (Grechnev et al., Solar Phys.289, 289, 2014b and Solar Phys.289, 1279, 2014c) of the 18 November 2003 solar event responsible for the 20 November geomagnetic superstorm has revealed a complex chain of eruptions. In particular, the eruptive filament encountered a topological discontinuity located near the solar disk …

2014 • Solar Physics

SOHO 13

Suzaku study of gas properties along filaments of A2744

DOI: 10.1051/0004-6361/201322806 Bibcode: 2014A&A...562A..11I

Zhang, Y. -Y.; Finoguenov, A.; Akamatsu, H. +2 more

Context. We present the results of Suzaku observations of a massive galaxy cluster A2744, which is an active merger at z = 0.308.
Aims: By using long X-ray observations of A2744, we aim to understand the growth of the cluster and the gas heating process through mass accretion along the surrounding filamen…

2014 • Astronomy and Astrophysics

Suzaku XMM-Newton 13

Discovery of large-scale diffuse radio emission and of a new galaxy cluster in the surroundings of MACS J0520.7-1328

DOI: 10.1051/0004-6361/201323275 Bibcode: 2014A&A...565A..13M

Pratt, G. W.; Bartalucci, I.; Kale, R. +11 more

We report the discovery of large-scale diffuse radio emission south-east of the galaxy cluster MACS J0520.7-1328, detected through high-sensitivity Giant Metrewave Radio Telescope 323 MHz observations. This emission is dominated by an elongated diffuse radio source and surrounded by other features of lower surface brightness. Pa…

2014 • Astronomy and Astrophysics

Planck 13

A hydrological analysis of terrestrial and Martian gullies: Implications for liquid water on Mars

DOI: 10.1016/j.geomorph.2014.07.034 Bibcode: 2014Geomo.226..261H

Hobbs, S. W.; Paull, D. J.; Clarke, J. D. A.

Understanding the role and amounts of liquid water involved in Martian gully formation is critical in studies of the Martian hydrosphere and climate. We performed hydrological analyses using the Manning and Darcy-Weisbach equations in order to infer flow velocities and discharge rates from channels at two gully sites in Noachis Terra, Mars. The re…

2014 • Geomorphology

MEx 13

Philae probe makes bumpy touchdown on a comet

Bibcode: 2014Sci...346..900H

Hand, Eric

2014 • Science

Rosetta 13

Rest-frame ultraviolet spectra of massive galaxies at z ~ 3: evidence of high-velocity outflows

DOI: 10.1051/0004-6361/201323117 Bibcode: 2014A&A...565A...5K

Almaini, Omar; Caputi, Karina I.; Trager, Scott C. +2 more

Galaxy formation models invoke the presence of strong feedback mechanisms that regulate the growth of massive galaxies at high redshifts. Providing observational evidence of these processes is crucial to justify and improve these prescriptions. In this paper we aim to (1) confirm spectroscopically the redshifts of a sample of massive galaxies sele…

2014 • Astronomy and Astrophysics

eHST 13

Another Short-burst Host Galaxy with an Optically Obscured High Star Formation Rate: The Case of GRB 071227

DOI: 10.1088/0004-637X/789/1/45 Bibcode: 2014ApJ...789...45N

Palazzi, E.; Greiner, J.; Hunt, L. K. +9 more

We report on radio continuum observations of the host galaxy of the short gamma-ray burst 071227 (z = 0.381) with the Australia Telescope Compact Array. We detect the galaxy in the 5.5 GHz band with an integrated flux density of F _ν = 43 ± 11 µJy, corresponding to an unobscured star-formation rate of about 24 M _⊙ yr

2014 • The Astrophysical Journal

eHST 13

Analysis of Supergranule Sizes and Velocities Using Solar Dynamics Observatory (SDO)/ Helioseismic Magnetic Imager (HMI) and Solar and Heliospheric Observatory (SOHO)/ Michelson Doppler Imager (MDI) Dopplergrams

DOI: 10.1007/s11207-013-0330-8 Bibcode: 2014SoPh..289...11W

Williams, Peter E.; Pesnell, W. Dean; Beck, John G. +1 more

Co-temporal Doppler images from Solar and Heliospheric Observatory (SOHO)/Michelson Doppler Imager (MDI) and Solar Dynamics Observatory (SDO)/Helioseismic Magnetic Imager (HMI) have been analyzed to extract quantitative information about global properties of the spatial and temporal characteristics of solar supergranulation. Preliminary comparison…

2014 • Solar Physics

SOHO 13

Dusty shells surrounding the carbon variables S Scuti and RT Capricorni

DOI: 10.1051/0004-6361/201321117 Bibcode: 2014A&A...566A..69M

Blommaert, J. A. D. L.; Ottensamer, R.; Decin, L. +8 more

For the Mass-loss of Evolved StarS (MESS) programme, the unprecedented spatial resolution of the PACS photometer on board the Herschel Space Observatory was employed to map the dusty environments of asymptotic giant branch (AGB) and red supergiant (RSG) stars. Among the morphologically heterogeneous sample, a small fraction of targets is enclosed …

2014 • Astronomy and Astrophysics

AKARI Herschel ISO 13