Search Publications
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…
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…
HELP: modelling the spectral energy distributions of Herschel detected galaxies in the ELAIS N1 field
Shirley, R.; Buat, V.; Małek, K. +10 more
Aims: The Herschel Extragalactic Legacy Project (HELP) focuses on the data from ESA's Herschel mission, which covered over 1300 deg2 and is preparing to publish a multi-wavelength catalogue of millions of objects. Our main goal is to find the best approach to simultaneously fitting spectral energy distributions (SEDs) of millions o…
Dust models compatible with Planck intensity and polarization data in translucent lines of sight
Miville-Deschênes, M. -A.; Boulanger, F.; Levrier, F. +6 more
Context. Current dust models are challenged by the dust properties inferred from the analysis of Planck observations in total and polarized emission.
Aims: We propose new dust models compatible with polarized and unpolarized data in extinction and emission for translucent lines of sight (0.5 < AV < 2.5).
Methods: We amen…
Riding the kinematic waves in the Milky Way disk with Gaia
Figueras, F.; Antoja, T.; Ramos, P.
Context. Gaia DR2 has delivered full-sky six-dimensional measurements for millions of stars, and the quest to understand the dynamics of our Galaxy has entered a new phase.
Aims: Our aim is to reveal and characterise the kinematic substructure of the different Galactic neighbourhoods, to form a picture of their spatial evolution that can be u…
CANDELSz7: a large spectroscopic survey of CANDELS galaxies in the reionization epoch
Maiolino, R.; Dickinson, M.; Finkelstein, S. L. +15 more
We present the results of CANDELSz7, a European Southern Observatory (ESO) Large Program aimed at spectroscopically confirming a homogeneous sample of z ≃ 6 and z ≃ 7 star forming galaxies. The candidates were selected in the GOODS-South, UDS, and COSMOS fields using the official CANDELS catalogs based on H160-band detections. Standard …
Gaia Data Release 2. Observations of solar system objects
Prusti, T.; Mazeh, T.; Zucker, S. +449 more
Context. The Gaia spacecraft of the European Space Agency (ESA) has been securing observations of solar system objects (SSOs) since the beginning of its operations. Data Release 2 (DR2) contains the observations of a selected sample of 14,099 SSOs. These asteroids have been already identified and have been numbered by the Minor Planet Center repos…
Molecular outflow and feedback in the obscured quasar XID2028 revealed by ALMA
Lutz, D.; Daddi, E.; Sargent, M. T. +29 more
We imaged, with ALMA and ARGOS/LUCI, the molecular gas and dust and stellar continuum in XID2028, which is an obscured quasi-stellar object (QSO) at z = 1.593, where the presence of a massive outflow in the ionised gas component traced by the [OIII]5007 emission has been resolved up to 10 kpc. This target represents a unique test case to study QSO…
The distribution of stars around the Milky Way's central black hole. I. Deep star counts
Nogueras-Lara, F.; Gallego-Calvente, A. T.; Dong, H. +4 more
Context. The existence of dynamically relaxed stellar density cusps in dense clusters around massive black holes is a long-standing prediction of stellar dynamics, but it has so far escaped unambiguous observational confirmation.
Aims: In this paper we aim to revisit the problem of inferring the innermost structure of the Milky Way's nuclear …
The Cepheid period-luminosity-metallicity relation based on Gaia DR2 data
Groenewegen, M. A. T.
Aims: We use parallax data from the Gaia second data release (GDR2), combined with parallax data based on HIPPARCOS and HST data, to derive the period-luminosity-metallicity (PLZ) relation for Galactic classical cepheids (CCs) in the V, K, and Wesenheit WVK bands.
Methods: An initial sample of 452 CCs are extracted from the literature wi…