Search Publications
SHINING, A Survey of Far-infrared Lines in Nearby Galaxies. II. Line-deficit Models, AGN Impact, [C II]-SFR Scaling Relations, and Mass-Metallicity Relation in (U)LIRGs
Lutz, D.; Genzel, R.; Maiolino, R. +12 more
The SHINING survey offers a great opportunity to study the properties of the ionized and neutral media of galaxies from prototypical starbursts and active galactic nuclei (AGNs) to heavily obscured objects. Based on Herschel/PACS observations of the main far-infrared (FIR) fine-structure lines, in this paper, we analyze the physical mechanisms beh…
Water vapor in the middle atmosphere of Mars during the 2007 global dust storm
Montmessin, Franck; Bertaux, Jean-Loup; Korablev, Oleg +4 more
Recent observations of the Martian hydrogen corona in the UV H Ly-alpha emission by the Hubble Space Telescope (HST) (Clarke et al., 2014) and the SPICAM UV spectrometer on Mars Express (Chaffin et al., 2014) reported its rapid change by an order of magnitude over a short few months period in 2007 (MY28), which is inconsistent with the existing mo…
Density perturbations for running vacuum: a successful approach to structure formation and to the σ8-tension
Gómez-Valent, Adrià; Solà Peracaula, Joan
Recent studies suggest that dynamical dark energy (DDE) provides a better fit to the rising affluence of modern cosmological observations than the concordance model (ΛCDM) with a rigid cosmological constant, Λ. Such is the case with the running vacuum models (RVMs) and to some extent also with a simple XCDM parametrization. Apart from the cosmic m…
TESS's first planet. A super-Earth transiting the naked-eye star π Mensae
Deeg, H.; Erikson, A.; Fridlund, M. +29 more
We report on the confirmation and mass determination of π Men c, the first transiting planet discovered by NASA's TESS space mission. π Men is a naked-eye (V = 5.65 mag), quiet G0 V star that was previously known to host a sub-stellar companion (π Men b) on a longperiod (Porb = 2091 days), eccentric (e = 0.64) orbit. Using TESS time-ser…
The Proper Motion Field of the Small Magellanic Cloud: Kinematic Evidence for Its Tidal Disruption
Kochanek, C. S.; van der Marel, Roeland P.; Anderson, J. +9 more
We present a new measurement of the systemic proper motion of the Small Magellanic Cloud (SMC), based on an expanded set of 30 fields containing background quasars and spanning a ∼3 year baseline, using the Hubble Space Telescope (HST) Wide Field Camera 3. Combining this data with our previous five HST fields, and an additional eight measurements …
Shadows and asymmetries in the T Tauri disk HD 143006: evidence for a misaligned inner disk
Ginski, C.; Garufi, A.; Dominik, C. +13 more
Context. While planet formation is thought to occur early in the history of a protoplanetary disk, the presence of planets embedded in disks, or of other processes driving disk evolution, might be traced from their imprints on the disk structure.
Aims: We study the morphology of the disk around the T Tauri star HD 143006, located in the ~5-11…
The magnetic early B-type stars I: magnetometry and rotation
Wade, G. A.; Neiner, C.; Shultz, M. E. +7 more
The rotational and magnetic properties of many magnetic hot stars are poorly characterized, therefore the Magnetism in Massive Stars and Binarity and Magnetic Interactions in various classes of Stars collaborations have collected extensive high-dispersion spectropolarimetric data sets of these targets. We present longitudinal magnetic field measur…
The mass of the young planet Beta Pictoris b through the astrometric motion of its host star
Snellen, I. A. G.; Brown, A. G. A.
The young massive Jupiters discovered with high-contrast imaging1-4 provide a unique opportunity to study the formation and early evolution of gas giant planets. A key question is to what extent gravitational energy from accreted gas contributes to the internal energy of a newly formed planet. This has led to a range of formation scenar…
Measuring the Value of the Hubble Constant “à la Refsdal”
Treu, T.; Grillo, C.; Balestra, I. +8 more
Realizing Refsdal’s original idea from 1964, we present estimates of the Hubble constant that are complementary to, and potentially competitive with, those of other cosmological probes. We use the observed positions of 89 multiple images, with extensive spectroscopic information, from 28 background sources and the measured time delays between the …
The SUrvey for Pulsars and Extragalactic Radio Bursts - I. Survey description and overview
Possenti, A.; Kramer, M.; Burgay, M. +19 more
We describe the Survey for Pulsars and Extragalactic Radio Bursts (SUPERB), an ongoing pulsar and fast transient survey using the Parkes radio telescope. SUPERB involves real-time acceleration searches for pulsars and single-pulse searches for pulsars and fast radio bursts. We report on the observational set-up, data analysis, multiwavelength/mess…