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New reaction rates for improved primordial D /H calculation and the cosmic evolution of deuterium
Petitjean, Patrick; Uzan, Jean-Philippe; Coc, Alain +4 more
Primordial or big bang nucleosynthesis (BBN) is one of the three historically strong evidences for the big bang model. Standard BBN is now a parameter-free theory, since the baryonic density of the Universe has been deduced with an unprecedented precision from observations of the anisotropies of the cosmic microwave background radiation. There is …
SINS/zC-SINF Survey of z ∼ 2 Galaxy Kinematics: Rest-frame Morphology, Structure, and Colors from Near-infrared Hubble Space Telescope Imaging
Wuyts, S.; Förster Schreiber, N. M.; Genzel, R. +14 more
We present the analysis of Hubble Space Telescope (HST) J- and H-band imaging for 29 galaxies on the star-forming main sequence at z ∼ 2, which have adaptive optics Very Large Telescope SINFONI integral field spectroscopy from our SINS/zC-SINF program. The SINFONI Hα data resolve the ongoing star formation and the ionized gas kinematics on scales …
Evidence of the Missing Baryons from the Kinematic Sunyaev-Zeldovich Effect in Planck Data
Wang, Wenting; Ma, Yin-Zhe; Herranz, Diego +4 more
We estimate the amount of the missing baryons detected by the Planck measurements of the cosmic microwave background in the direction of central galaxies (CGs) identified in the Sloan galaxy survey. The peculiar motion of the gas inside and around the CGs unveils values of the Thomson optical depth τT in the range 0.2 - 2 ×1 0-4
MIRO observations of subsurface temperatures of the nucleus of 67P/Churyumov-Gerasimenko
Hartogh, Paul; Lellouch, Emmanuel; Keller, Horst Uwe +20 more
Observations of the nucleus of 67P/Churyumov-Gerasimenko in the millimeter-wave continuum have been obtained by the Microwave Instrument for the Rosetta Orbiter (MIRO). We present data obtained at wavelengths of 0.5 mm and 1.6 mm during September 2014 when the nucleus was at heliocentric distances between 3.45 and 3.27 AU. The data are fit to simp…
Resonant interactions and chaotic rotation of Pluto's small moons
Hamilton, D. P.; Showalter, M. R.
Four small moons--Styx, Nix, Kerberos and Hydra--follow near-circular, near-equatorial orbits around the central `binary planet' comprising Pluto and its large moon, Charon. New observational details of the system have emerged following the discoveries of Kerberos and Styx. Here we report that Styx, Nix and Hydra are tied together by a three-body …
Mapping the average AGN accretion rate in the SFR-M* plane for Herschel-selected galaxies at 0 < z ≤ 2.5
Berta, S.; Lutz, D.; Cimatti, A. +15 more
We study the relation of AGN accretion, star formation rate (SFR) and stellar mass (M*) using a sample of ≈8600 star-forming galaxies up to z = 2.5 selected with Herschel imaging in the GOODS and COSMOS fields. For each of them we derive SFR and M*, both corrected, when necessary, for emission from an active galactic nucleus …
A Spectroscopic Analysis of the Galactic Globular Cluster NGC 6273 (M19)
Caldwell, Nelson; Rich, R. Michael; Johnson, Christian I. +4 more
A combined effort utilizing spectroscopy and photometry has revealed the existence of a new globular cluster class. These “anomalous” clusters, which we refer to as “iron-complex” clusters, are differentiated from normal clusters by exhibiting large (≳0.10 dex) intrinsic metallicity dispersions, complex sub-giant branches, and correlated [Fe/H] an…
Surveying Galaxy Proto-clusters in Emission: A Large-scale Structure at z = 2.44 and the Outlook for HETDEX
Finkelstein, Steven L.; Schneider, Donald P.; Blanc, Guillermo A. +12 more
Galaxy proto-clusters at z≳ 2 provide a direct probe of the rapid mass assembly and galaxy growth of present-day massive clusters. Because of the need for precise galaxy redshifts for density mapping and the prevalence of star formation before quenching, nearly all the proto-clusters known to date were confirmed by spectroscopy of galaxies with st…
First Results from the Hubble OPAL Program: Jupiter in 2015
Wong, Michael H.; Orton, Glenn S.; Simon, Amy A.
The Hubble 2020: Outer Planet Atmospheres Legacy program is generating new yearly global maps for each of the outer planets. This report focuses on Jupiter results from the first year of the campaign. The zonal wind profile was measured and is in the same family as the Voyager and Cassini era profiles, showing some variation in mid- to high-latitu…
The growth of the galaxy cluster Abell 85: mergers, shocks, stripping and seeding of clumping
Simionescu, A.; Mernier, F.; Takahashi, T. +5 more
We present the results of deep Chandra, XMM-Newton and Suzaku observations of the nearby galaxy cluster Abell 85, which is currently undergoing at least two mergers, and in addition shows evidence for gas sloshing which extends out to r ≈ 600 kpc. One of the two infalling subclusters, to the south of the main cluster centre, has a dense, X-ray bri…