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Modelling long-period variables - II. Fundamental mode pulsation in the non-linear regime
Girardi, Léo; Marigo, Paola; Lebzelter, Thomas +4 more
Long-period variability in luminous red giants has several promising applications, all of which require models able to accurately predict pulsation periods. Linear pulsation models have proven successful in reproducing the observed periods of overtone modes in evolved red giants, but they fail to accurately predict their fundamental mode (FM) peri…
Isotopic fractionation of water and its photolytic products in the atmosphere of Mars
Montmessin, Franck; Belyaev, Denis A.; Fedorova, Anna A. +13 more
The current Martian atmosphere is about five times more enriched in deuterium than Earth's, providing direct testimony that Mars hosted vastly more water in its early youth than nowadays. Estimates of the total amount of water lost to space from the current mean D/H value depend on a rigorous appraisal of the relative escape between deuterated and…
Resolving a dusty, star-forming SHiZELS galaxy at z = 2.2 with HST, ALMA, and SINFONI on kiloparsec scales
Smail, I.; Ibar, E.; Swinbank, A. M. +6 more
We present ∼0.15 arcsec spatial resolution imaging of SHiZELS-14, a massive ( $M_{*}\sim 10^{11}\, \rm {M_{\odot }}$ ), dusty, star-forming galaxy at z = 2.24. Our rest-frame ${\sim}1\, \rm {kpc}$ -scale, matched-resolution data comprise four different widely used tracers of star formation: the $\rm {H}\,\alpha$ emission line (from SINFONI/VLT), r…
Combined analysis of neutron star natal kicks using proper motions and parallax measurements for radio pulsars and Be X-ray binaries
Igoshev, Andrei P.; Toonen, Silvia; Chruslinska, Martyna +1 more
Supernova explosion and the associated neutron star (NS) natal kicks are important events on a pathway of a binary to become a gravitational wave source, an X-ray binary, or a millisecond radio pulsar. Weak natal kicks often lead to binary survival, while strong kicks frequently disrupt the binary. In this article, we aim to further constrain NS n…
The LBT satellites of Nearby Galaxies Survey (LBT-SONG): the satellite population of NGC 628
Pogge, Richard W.; Kochanek, Christopher S.; Sand, David J. +9 more
We present the first satellite system of the Large Binocular Telescope Satellites Of Nearby Galaxies Survey (LBT-SONG), a survey to characterize the close satellite populations of Large Magellanic Cloud to Milky-Way-mass, star-forming galaxies in the Local Volume. In this paper, we describe our unresolved diffuse satellite finding and completeness…
Infrared Surface Brightness Fluctuation Distances for MASSIVE and Type Ia Supernova Host Galaxies
Ma, Chung-Pei; Greene, Jenny E.; Garnavich, Peter M. +9 more
We measured high-quality surface brightness fluctuation (SBF) distances for a sample of 63 massive early-type galaxies using the WFC3/IR camera on the Hubble Space Telescope. The median uncertainty on the SBF distance measurements is 0.085 mag, or 3.9% in distance. Achieving this precision at distances of 50-100 Mpc required significant improvemen…
SOFIA FEEDBACK Survey: Exploring the Dynamics of the Stellar Wind-Driven Shell of RCW 49
Schneider, N.; Stutzki, J.; Tielens, A. G. G. M. +13 more
We unveil the stellar wind-driven shell of the luminous massive star-forming region of RCW 49 using SOFIA FEEDBACK observations of the [C II] 158 µm line. The complementary data set of the 12CO and 13CO J = 3 → 2 transitions is observed by the APEX telescope and probes the dense gas toward RCW 49. Using the spatial and …
Gas phase Elemental abundances in Molecular cloudS (GEMS). IV. Observational results and statistical trends
Roueff, E.; Kirk, J.; Ward-Thompson, D. +33 more
Gas phase Elemental abundances in Molecular CloudS (GEMS) is an IRAM 30 m Large Program designed to provide estimates of the S, C, N, and O depletions and gas ionization degree, X(e−), in a selected set of star-forming filaments of Taurus, Perseus, and Orion. Our immediate goal is to build up a complete and large database of molecular a…
The emergence of passive galaxies in the early Universe
Magnelli, B.; Castellano, M.; Pentericci, L. +10 more
The emergence of passive galaxies in the early Universe results from the delicate interplay among the different physical processes responsible for their rapid assembly and the abrupt shut-down of their star formation activity. Investigating the individual properties and demographics of early passive galaxies improves our understanding of these mec…
COALAS. I. ATCA CO(1-0) survey and luminosity function in the Spiderweb protocluster at z = 2.16
Thomson, A. P.; Dannerbauer, H.; Seymour, N. +25 more
We report a detailed CO(1−0) survey of a galaxy protocluster field at z = 2.16, based on 475 h of observations with the Australia Telescope Compact Array. We constructed a large mosaic of 13 individual pointings, covering an area of 21 arcmin2 and ±6500 km s−1 range in velocity. We obtained a robust sample of 46 CO(1−0) detec…