Science Archives Publication System

H-ATLAS/GAMA: magnification bias tomography. Astrophysical constraints above ~1 arcmin

DOI: 10.1088/1475-7516/2017/10/024 Bibcode: 2017JCAP...10..024G

Ivison, R. J.; Bonavera, L.; Danese, L. +14 more

An unambiguous manifestation of the magnification bias is the cross-correlation between two source samples with non-overlapping redshift distributions. In this work we measure and study the cross-correlation signal between a foreground sample of GAMA galaxies with spectroscopic redshifts in the range 0.2<z<0.8, and a background sample of H-A…

2017 • Journal of Cosmology and Astroparticle Physics

Herschel 11

A deeper view of the CoRoT-9 planetary system. A small non-zero eccentricity for CoRoT-9b likely generated by planet-planet scattering

DOI: 10.1051/0004-6361/201730624 Bibcode: 2017A&A...603A..43B

Aigrain, S.; Alonso, R.; Bordé, P. +27 more

CoRoT-9b is one of the rare long-period (P = 95.3 days) transiting giant planets with a measured mass known to date. We present a new analysis of the CoRoT-9 system based on five years of radial-velocity (RV) monitoring with HARPS and three new space-based transits observed with CoRoT and Spitzer. Combining ou…

2017 • Astronomy and Astrophysics

CoRoT 11

Turbulent Density Fluctuations and Proton Heating Rate in the Solar Wind from 9-20 R _⊙

DOI: 10.3847/1538-4357/aa94cd Bibcode: 2017ApJ...850..129S

Vourlidas, Angelos; Ramesh, R.; Subramanian, Prasad +2 more

We obtain scatter-broadened images of the Crab Nebula at 80 MHz as it transits through the inner solar wind in 2017 and 2016 June. These images are anisotropic, with the major axis oriented perpendicular to the radially outward coronal magnetic field. Using these data, we deduce that the density modulation index (δ {N}_e/{N}_e)…

2017 • The Astrophysical Journal

SOHO 11

A Radio Relic and a Search for the Central Black Hole in the Abell 2261 Brightest Cluster Galaxy

DOI: 10.3847/1538-4357/aa9064 Bibcode: 2017ApJ...849...59B

Lauer, Tod R.; Postman, Marc; Lazio, T. Joseph W. +4 more

We present VLA images and HST/STIS spectra of sources within the center of the brightest cluster galaxy (BCG) in Abell 2261. These observations were obtained to test the hypothesis that its extremely large, flat core reflects the ejection of its supermassive black hole. Spectra of three of the four most luminous “knots” embedded in the core were t…

2017 • The Astrophysical Journal

eHST 11

Complete spectral energy distribution of the hot, helium-rich white dwarf RX J0503.9-2854

DOI: 10.1051/0004-6361/201629869 Bibcode: 2017A&A...598A.135H

Hoyer, D.; Rauch, T.; Werner, K. +2 more

Context. In the line-of-sight toward the DO-type white dwarf RX J0503.9-2854, the density of the interstellar medium (ISM) is very low, and thus the contamination of the stellar spectrum almost negligible. This allows us to identify many metal lines in a wide wavelength range from the extreme ultraviolet to the near infrared.

2017 • Astronomy and Astrophysics

eHST 11

The effect of the environment on the structure, morphology and star formation history of intermediate-redshift galaxies

DOI: 10.1093/mnras/stx1155 Bibcode: 2017MNRAS.469.4551K

Schrabback, Tim; Aragón-Salamanca, Alfonso; Milvang-Jensen, Bo +4 more

With the aim of understanding the effect of the environment on the star formation history and morphological transformation of galaxies, we present a detailed analysis of the colour, morphology and internal structure of cluster and field galaxies at 0.4 ≤ z ≤ 0.8. We use the Hubble Space Telescope data for over 500 galaxies from the ESO Distant Clu…

2017 • Monthly Notices of the Royal Astronomical Society

eHST 11

Outflow and Metallicity in the Broad-Line Region of Low-Redshift Active Galactic Nuclei

DOI: 10.3847/1538-4357/835/1/24 Bibcode: 2017ApJ...835...24S

Nagao, Tohru; Woo, Jong-Hak; Shin, Jaejin

Outflows in active galactic nuclei (AGNs) are crucial to understand in investigating the co-evolution of supermassive black holes (SMBHs) and their host galaxies since outflows may play an important role as an AGN feedback mechanism. Based on archival UV spectra obtained with the Hubble Space Telescope and IUE, we investigate outflows in the broad…

2017 • The Astrophysical Journal

IUE eHST 11

Similarities in element content between comet 67P/Churyumov-Gerasimenko coma dust and selected meteorite samples

DOI: 10.1093/mnras/stx1908 Bibcode: 2017MNRAS.469S.492S

Engrand, Cécile; Merouane, Sihane; Paquette, John +8 more

We have analysed the element composition and the context of particles collected within the coma of 67P/Churyumov-Gerasimenko with Rosetta's COmetary Secondary Ion Mass Analyzer (COSIMA). A comparison has been made between on board cometary samples and four meteorite samples measured in the laboratory with the COSIMA reference model. Focusing on th…

2017 • Monthly Notices of the Royal Astronomical Society

Rosetta 11

Shallow water simulations of Saturn's giant storms at different latitudes

DOI: 10.1016/j.icarus.2016.10.006 Bibcode: 2017Icar..286..241G

Sánchez-Lavega, A.; García-Melendo, E.

Shallow water simulations are used to present a unified study of three major storms on Saturn (nicknamed as Great White Spots, GWS) at different latitudes, polar (1960), equatorial (1990), and mid-latitude (2010) (Sánchez-Lavega, 2004; Sánchez-Lavega et al., 2011). In our model, the three GWS are initiated by introducing a Gaussian function pulse …

2017 • Icarus

eHST 11

Reddening and He I ^∗ λ10830 Absorption Lines in Three Narrow-line Seyfert 1 Galaxies

DOI: 10.3847/1538-4357/aa8223 Bibcode: 2017ApJ...845..126Z

Zhou, Hongyan; Ji, Tuo; Shi, Xiheng +6 more

We report the detection of heavy reddening and the He I* λ10830 absorption lines at the active galactic nucleus (AGN) redshift in three narrow-line Seyfert 1 galaxies: SDSS J091848.61+211717.0, SDSS J111354.66+124439.0, and SDSS J122749.13+321458.9. They exhibit very red optical to near-infrared colors, narrow Balmer/Paschen broad emission lines a…

2017 • The Astrophysical Journal

eHST 11