Search Publications
Planck 2015 results. XXI. The integrated Sachs-Wolfe effect
Kneissl, R.; Miville-Deschênes, M. -A.; Bernard, J. -P. +229 more
This paper presents a study of the integrated Sachs-Wolfe (ISW) effect from the Planck 2015 temperature and polarization data release. This secondary cosmic microwave background (CMB) anisotropy caused by the large-scale time-evolving gravitational potential is probed from different perspectives. The CMB is cross-correlated with different large-sc…
A combined transmission spectrum of the Earth-sized exoplanets TRAPPIST-1 b and c
Triaud, Amaury H. M. J.; Valenti, Jeff A.; Wakeford, Hannah R. +11 more
Three Earth-sized exoplanets were recently discovered close to the habitable zone of the nearby ultracool dwarf star TRAPPIST-1 (ref. 3). The nature of these planets has yet to be determined, as their masses remain unmeasured and no observational constraint is available for the planetary population surrounding ultracool dwarfs, of which the TRAPPI…
The VLT LEGA-C Spectroscopic Survey: The Physics of Galaxies at a Lookback Time of 7 Gyr
Wolf, C.; Brammer, G.; Rix, H. -W. +17 more
The Large Early Galaxy Census (LEGA-C) is a Public Spectroscopic Survey of ∼3200 K-band selected galaxies at redshifts z = 0.6 - 1.0 with stellar masses {M}*\gt {10}10\quad {M}⊙ , conducted with VIMOS on ESO’s Very Large Telescope. The survey is embedded in the COSMOS field (R.A. = 10h00; {decl}. = +2 {deg}). The 2…
The Swift GRB Host Galaxy Legacy Survey. II. Rest-frame Near-IR Luminosity Distribution and Evidence for a Near-solar Metallicity Threshold
Berger, E.; Chary, R.; Fynbo, J. P. U. +9 more
We present rest-frame near-IR (NIR) luminosities and stellar masses for a large and uniformly selected population of gamma-ray burst (GRB) host galaxies using deep Spitzer Space Telescope imaging of 119 targets from the Swift GRB Host Galaxy Legacy Survey spanning 0.03 < z < 6.3, and we determine the effects of galaxy evolution and chemical …
Improvement of cosmological neutrino mass bounds
Ho, Shirley; Mena, Olga; Gerbino, Martina +3 more
The most recent measurements of the temperature and low-multipole polarization anisotropies of the cosmic microwave background from the Planck satellite, when combined with galaxy clustering data from the Baryon Oscillation Spectroscopic Survey in the form of the full shape of the power spectrum, and with baryon acoustic oscillation measurements, …
Oblique Whistler-Mode Waves in the Earth's Inner Magnetosphere: Energy Distribution, Origins, and Role in Radiation Belt Dynamics
Agapitov, Oleksiy; Krasnoselskikh, Vladimir; Artemyev, Anton +3 more
In this paper we review recent spacecraft observations of oblique whistler-mode waves in the Earth's inner magnetosphere as well as the various consequences of the presence of such waves for electron scattering and acceleration. In particular, we survey the statistics of occurrences and intensity of oblique chorus waves in the region of the outer …
Carbon and Oxygen Abundances in Low Metallicity Dwarf Galaxies
Skillman, Evan D.; Erb, Dawn K.; Berg, Danielle A. +2 more
The study of carbon and oxygen abundances yields information on the time evolution and nucleosynthetic origins of these elements, yet they remain relatively unexplored. At low metallicities, (12+log(O/H) < 8.0), nebular carbon measurements are limited to rest-frame UV collisionally excited emission lines. Therefore, we present the UV spectropho…
No Thermal Inversion and a Solar Water Abundance for the Hot Jupiter HD 209458b from HST/WFC3 Spectroscopy
Madhusudhan, Nikku; Fortney, Jonathan J.; Stevenson, Kevin B. +6 more
The nature of the thermal structure of hot Jupiter atmospheres is one of the key questions raised by the characterization of transiting exoplanets over the past decade. There have been claims that many hot Jupiters exhibit atmospheric thermal inversions. However, these claims have been based on broadband photometry rather than the unambiguous iden…
The Shape of the Inner Milky Way Halo from Observations of the Pal 5 and GD--1 Stellar Streams
Bovy, Jo; Kallivayalil, Nitya; Fritz, Tobias K. +1 more
We constrain the shape of the Milky Way’s halo by dynamical modeling of the observed phase-space tracks of the Pal 5 and GD-1 tidal streams. We find that the only information about the potential gleaned from the tracks of these streams are precise measurements of the shape of the gravitational potential—the ratio of vertical to radial acceleration…
Mass Measurements in Protoplanetary Disks from Hydrogen Deuteride
Henning, Th.; van Dishoeck, E. F.; Pontoppidan, K. M. +8 more
The total gas mass of a protoplanetary disk is a fundamental, but poorly determined, quantity. A new technique has been demonstrated to assess directly the bulk molecular gas reservoir of molecular hydrogen using the HD J = 1-0 line at 112 µm. In this work we present a Herschel Space Observatory 10 survey of six additional T Tauri…