Science Archives Publication System

Double layer electric fields aiding the production of energetic flat-top distributions and superthermal electrons within magnetic reconnection exhausts

DOI: 10.1063/1.4933055 Bibcode: 2015PhPl...22j1208E

Borg, A. L.; Egedal, J.; Daughton, W. +1 more

Using a kinetic simulation of magnetic reconnection, it was recently shown that magnetic-field-aligned electric fields (E_∥) can be present over large spatial scales in reconnection exhausts. The largest values of E_∥ are observed within double layers. The existence of double layers in the Earth's magnetosphere is well document…

2015 • Physics of Plasmas

Cluster 78

[C II] absorption and emission in the diffuse interstellar medium across the Galactic plane

DOI: 10.1051/0004-6361/201424349 Bibcode: 2015A&A...573A..30G

Menten, K. M.; Falgarone, E.; Godard, B. +10 more

Aims: Ionized carbon is the main gas-phase reservoir of carbon in the neutral diffuse interstellar medium (ISM) and its 158 µm fine structure transition [C ii] is the most important cooling line of the diffuse ISM. We combine [C ii] absorption and emission spectroscopy to gain an improved understanding of physical conditions in the diff…

2015 • Astronomy and Astrophysics

Herschel 78

Cross-correlation between the CMB Lensing Potential Measured by Planck and High-z Submillimeter Galaxies Detected by the Herschel-Atlas Survey

DOI: 10.1088/0004-637X/802/1/64 Bibcode: 2015ApJ...802...64B

Baccigalupi, C.; Bielewicz, P.; Danese, L. +15 more

We present the first measurement of the correlation between the map of the cosmic microwave background (CMB) lensing potential derived from the Planck nominal mission data and z≳ 1.5 galaxies detected by the Herschel-ATLAS (H-ATLAS) survey covering about 600 {{deg }²}, i.e., about 1.4% of the sky. We reject the hypothesis that there is …

2015 • The Astrophysical Journal

Herschel Planck 78

The Peculiar Behavior of Halo Coronal Mass Ejections in Solar Cycle 24

DOI: 10.1088/2041-8205/804/1/L23 Bibcode: 2015ApJ...804L..23G

Gopalswamy, N.; Michalek, G.; Yashiro, S. +3 more

We report on the remarkable finding that the halo coronal mass ejections (CMEs) in cycle 24 are more abundant than in cycle 23, although the sunspot number in cycle 24 has dropped by ∼40%. We also find that the distribution of halo-CME source locations is different in cycle 24: the longitude distribution of halos is much flatter with the number of…

2015 • The Astrophysical Journal

SOHO 78

MUSE integral-field spectroscopy towards the Frontier Fields cluster Abell S1063. I. Data products and redshift identifications

DOI: 10.1051/0004-6361/201424962 Bibcode: 2015A&A...574A..11K

Grillo, C.; Balestra, I.; Rosati, P. +11 more

We present the first observations of the Frontier Fields cluster Abell S1063 taken with the newly commissioned Multi Unit Spectroscopic Explorer (MUSE) integral field spectrograph. Because of the relatively large field of view (1 arcmin²), MUSE is ideal to simultaneously target multiple galaxies in blank and cluster fields over the full…

2015 • Astronomy and Astrophysics

eHST 78

Fifteen years of XMM-Newton and Chandra monitoring of Sgr A^★: evidence for a recent increase in the bright flaring rate

DOI: 10.1093/mnras/stv1537 Bibcode: 2015MNRAS.454.1525P

Nandra, K.; Merloni, A.; Degenaar, N. +13 more

We present a study of the X-ray flaring activity of Sgr A^⋆ during all the 150 XMM-Newton and Chandra observations pointed at the Milky Way centre over the last 15 years. This includes the latest XMM-Newton and Chandra campaigns devoted to monitoring the closest approach of the very red Brγ emitting object called G2. The entire data set …

2015 • Monthly Notices of the Royal Astronomical Society

XMM-Newton 78

The orbits and masses of satellites of Pluto

DOI: 10.1016/j.icarus.2014.03.015 Bibcode: 2015Icar..246..317B

Showalter, Mark R.; Buie, Marc W.; Jacobson, Robert A. +1 more

We present the numerically integrated orbits of Pluto's satellites. The orbits have been fit to a data set that includes Earth-based and Hubble Space Telescope (HST) astrometry of Charon, Nix, Hydra, Kerberos, and Styx, as well as the lightcurves from the Pluto-Charon mutual events. We also report new, 2010-2012 HST astrometry of all satellites in…

2015 • Icarus

eHST 78

Geometrical Relationship Between Interplanetary Flux Ropes and Their Solar Sources

DOI: 10.1007/s11207-015-0681-4 Bibcode: 2015SoPh..290.1371M

Marubashi, K.; Cho, K. -S.; Gopalswamy, N. +3 more

We investigated the physical connection between interplanetary flux ropes (IFRs) near Earth and coronal mass ejections (CMEs) by comparing the magnetic field structures of IFRs and CME source regions. The analysis is based on the list of 54 pairs of ICMEs (interplanetary coronal mass ejections) and CMEs that are taken to be the most probable solar…

2015 • Solar Physics

SOHO 78

GHIGLS: H I Mapping at Intermediate Galactic Latitude Using the Green Bank Telescope

DOI: 10.1088/0004-637X/809/2/153 Bibcode: 2015ApJ...809..153M

Miville-Deschênes, M. -A.; Martin, P. G.; Blagrave, K. P. M. +5 more

This paper introduces and describes the data cubes from GHIGLS, deep Green Bank Telescope (GBT) surveys of the 21 cm line emission of H i in 37 targeted fields at intermediate Galactic latitude. The GHIGLS fields together cover over 1000 deg² at 9\buildrel{ \prime}\over{.} 55 spatial resolution. The H i spectra have an effective velocit…

2015 • The Astrophysical Journal

Planck 78

Hubble Space Telescope Spectroscopy of Brown Dwarfs Discovered with the Wide-field Infrared Survey Explorer

DOI: 10.1088/0004-637X/804/2/92 Bibcode: 2015ApJ...804...92S

Cushing, Michael C.; Kirkpatrick, J. Davy; Gelino, Christopher R. +7 more

We present a sample of brown dwarfs identified with the Wide-field Infrared Survey Explorer (WISE) for which we have obtained Hubble Space Telescope (HST) Wide Field Camera 3 (WFC3) near-infrared grism spectroscopy. The sample (22 in total) was observed with the G141 grism covering 1.10-1.70 µm, while 15 were also observed with the G102 gris…

2015 • The Astrophysical Journal

eHST 78