Science Archives Publication System

Three-minute Sunspot Oscillations Driven by Magnetic Reconnection in a Light Bridge

DOI: 10.3847/2041-8213/aa9a36 Bibcode: 2017ApJ...850L..33S

Moon, Yong-Jae; Yurchyshyn, Vasyl; Chae, Jongchul +5 more

We report a different type of three-minute chromospheric oscillation above a sunspot in association with a small-scale impulsive event in a light bridge (LB). During our observations, we found a transient brightening in the LB. The brightening was composed of elementary bursts that may be a manifestation of fast repetitive magnetic reconnections i…

2017 • The Astrophysical Journal

IRIS 4

Southern Meridiani Planum - A candidate landing site for the first crewed mission to Mars

DOI: 10.1016/j.actaastro.2016.12.039 Bibcode: 2017AcAau.133..195C

Smith, H.; Hobbs, S. W.; Clarke, J. D. A. +2 more

Astronauts working on the surface of Mars have the capability to explore efficiently, rapidly, and flexibly, allowing them to perform a wide range of field investigations. NASA has begun an open international process to identify and evaluate candidate locations where crews could land, live and work on the martian surface, beginning with the First …

2017 • Acta Astronautica

MEx 4

New Orbits for 18 Binaries

DOI: 10.3847/1538-3881/aa9920 Bibcode: 2017AJ....154..273C

Cvetković, Z.; Pavlović, R.

Orbital elements of 18 visual binaries are computed using the measurements collected in the Fourth Catalog of Interferometric Measurements of Binary Stars; 15 orbits are determined for the first time and three orbits are revised. Eleven of the binaries, denoted as HDS, were discovered during the Hipparcos mission. The remaining binaries were disco…

2017 • The Astronomical Journal

Hipparcos 4

Gamma-ray observatory INTEGRAL reloaded

DOI: 10.1038/s41550-017-0083 Bibcode: 2017NatAs...1E..83V

van den Heuvel, Edward P. J.

The scientific aims of the European Space Agency's International Gamma-Ray Astrophysics Laboratory are considerably extended because of its unique capability to identify electromagnetic counterparts to sources of gravitational waves and ultra-high-energy neutrinos.

2017 • Nature Astronomy

INTEGRAL 4

Multiscale analysis of the CMB temperature derivatives

DOI: 10.1088/1475-7516/2017/02/026 Bibcode: 2017JCAP...02..026M

Martínez-González, E.; Vielva, P.; Marcos-Caballero, A.

We study the Planck CMB temperature at different scales through its derivatives up to second order, which allows one to characterize the local shape and isotropy of the field. The problem of having an incomplete sky in the calculation and statistical characterization of the derivatives is addressed in the paper. The analysis confirms the existence…

2017 • Journal of Cosmology and Astroparticle Physics

Planck 4

CXO J004318.8+412016, a steady supersoft X-ray source in M 31

DOI: 10.1093/mnras/stx1355 Bibcode: 2017MNRAS.470.2212O

Luna, G. J. M.; Della Valle, M.; de Martino, D. +15 more

We obtained an optical spectrum of a star we identify as the optical counterpart of the M31 Chandra source CXO J004318.8+412016, because of prominent emission lines of the Balmer series, of neutral helium, and a He II line at 4686 Å. The continuum energy distribution and the spectral characteristics demonstrate the presence of a red giant of K or …

2017 • Monthly Notices of the Royal Astronomical Society

XMM-Newton eHST 4

Probability densities of the effective neutrino masses m_β and m_ββ

DOI: 10.1016/j.nuclphysb.2017.06.015 Bibcode: 2017NuPhB.921..829D

Meloni, Davide; Di Iura, Andrea

We compute the probability densities of the effective neutrino masses m_β and m_ββ using the Kernel Density Estimate (KDE) approach applied to a distribution of points in the (m_min ,m_ββ) and (m_β ,m_ββ) planes, obtained using the available Probability Distribution Functions (PDFs) of th…

2017 • Nuclear Physics B

Planck 4

First results from the use of the relativistic and slim disc model SLIMULX in XSPEC

DOI: 10.48550/arXiv.1705.07859 Bibcode: 2017CoSka..47...84C

Castro-Tirado, A. J.; Dovčiak, M.; Karas, V. +3 more

Ultra-Luminous X-ray sources (ULXs) are accreting black holes for which their X-ray properties have been seen to be different to the case of stellar-mass black hole binaries. For most of the cases their intrinsic energy spectra are well described by a cold accretion disc (thermal) plus a curved high-energy emission components. The mass of the blac…

2017 • Contributions of the Astronomical Observatory Skalnate Pleso

XMM-Newton 4

The properties of red giant stars along the Sagittarius tidal tails

DOI: 10.1051/0004-6361/201629051 Bibcode: 2017A&A...597A..54Z

Zhang, X.; Zhou, L.; Zhao, G. +10 more

Aims: We aim to measure the metallicity distribution and velocity distribution of red giant branch (RGB) stars along the Sagittarius dwarf galaxy (Sgr) streams. Thanks to the large number of stars of the Sloan Digital Sky Survey (SDSS) sample, we can study the properties of streams as a function of the Λ_⊙ from the Sgr core.
Me…

2017 • Astronomy and Astrophysics

Gaia 4

Evaluation of a possible upgrade of the IAU 2006 precession

DOI: 10.1051/0004-6361/201628717 Bibcode: 2017A&A...597A..83L

Liu, J. -C.; Capitaine, N.

Context. The International Astronomical Union (IAU) adopted a new precession model at its 2006 General Assembly. After more than ten years since the publication of the so-called IAU 2006 precession, we have noticed progress in solar system ephemerides and geophysical observations, which can be used to refine the precession model. Another progress …

2017 • Astronomy and Astrophysics

VenusExpress 4