Search Publications
Development of a simulator of the SIMBIOSYS suite onboard the BepiColombo mission
Cremonese, G.; Da Deppo, V.; Capaccioni, F. +11 more
BepiColombo is the fifth cornerstone mission of the European Space Agency (ESA) dedicated to study the Mercury planet. The BepiColombo spacecraft comprises two science modules: the Mercury Planetary Orbiter (MPO) realized by ESA and the Mercury Magnetospheric Orbiter provided by the Japan Aerospace Exploration Agency. The MPO is composed by 11 ins…
Multifrequency study of HH 137 and HH 138: discovering new knots and molecular outflows with Gemini and APEX
Rubio, Mónica; Saldaño, Hugo P.; Gómez, Mercedes +3 more
We present a multiwavelength study of two Herbig-Haro (HH) objects (137 and 138) that may be associated. We use Gemini H2 (2.12 µm) and K (2.2 µm) images, as well as Atacama Pathfinder EXperiment molecular line observations and Spitzer image archives. Several H2 knots, linked to the optical chain of knots of HH 13…
Integrated approach to the PDR/H II complex by the application of carbon radio recombination lines in the millimetre range and fine-structure lines of C II and O I
Siddiqui, S. A.; Khan, Shafiqullah; Qaiyum, A.
We have performed self-consistent calculations to estimate the physical parameters of photodissociation regions (PDRs) associated with objects, namely, NGC 2024, Orion A and W3, using far-infrared continuum emission, fine-structure lines of C II and O I, and radio recombination lines of carbon. Typically, PDRs separate H II regions from the molecu…
A search for supernova light echoes in NGC 6946 with SITELLE
Welch, D. L.; Radica, M. C.; Rousseau-Nepton, L.
We present the analysis of 4 h of spectroscopic observations of NGC 6946 with the SITELLE Imaging Fourier Transform Spectrometer on the Canada-France-Hawaii Telescope, acquired to search for supernova light echoes from its 10 modern supernovae. We develop a novel spectroscopic search method: identifying negatively sloped continua in the narrow-ban…
Herbig-Haro flows around the BBWo 192E (GM 1-23) nebula
Bally, J.; Rastorguev, A. S.; Movsessian, T. A. +2 more
Looking for evidence of recent star formation, we have studied a small comet-shaped reflection nebula, known as BBWo 192E (GM 1-23), which is located in the dark cloud SL 4 in the Vela Molecular Ridge cloud C, and a young infrared cluster embedded into the nebula. We obtained the images of BBWo 192E in Hα and [S II] lines and in a Sloan Digital Sk…
Erratum: 'XMM-newton large program on SN1006 - II: Thermal emission' (2016, MNRAS, 462, 158)
Vink, Jacco; Miceli, Marco; Bocchino, Fabrizio +2 more
ARCHI: pipeline for light curve extraction of CHEOPS background stars
Guterman, P.; Hoyer, S.; Sousa, Sérgio G. +6 more
High precision time-series photometry from space is being used for a number of scientific cases. In this context, the recently launched CHaracterizing ExOPlanet Satellite (CHEOPS) (ESA) mission promises to bring 20 ppm precision over an exposure time of 6 h, when targeting nearby bright stars, having in mind the detailed characterization of exopla…
Photometry and spectroscopy of massive stars observed during K2 Campaign 8
Eidam, Jéssica M.; Andrade, Laerte; Emilio, Marcelo +4 more
We report in this paper spectroscopic and photometric analysis of eight massive stars observed during Campaign 8 of the Kepler/K2 mission from 2016 January to March. Spectroscopic data were obtained on these stars at OPD/LNA, Brazil, and their stellar parameters determined using SME. Periodic analyses of the light curves were performed through CLE…
Supersolar metallicity in G0-G3 main-sequence stars with V < 15. II. An extension of the sample
Bertone, E.; López-Valdivia, R.; Chávez, M. +1 more
We present the spectroscopic analysis at intermediate resolution of a new sample of 146 Sun-like stars (of spectral types G0-G3 and luminosity class V), which complements the data set of 233 targets previously investigated. Aimed at identifying objects with supersolar metallicity, we conducted observations at the Observatorio Astrofísico Guillermo…
Two close binaries across the hydrogen-burning limit in the Praesepe open cluster
Rebolo, R.; del Burgo, C.; Alvarez, C. +7 more
We present Keck I/OSIRIS and Keck II/NIRC2 adaptive optics imaging of two member candidates of the Praesepe stellar cluster (d = 186.18 ± 0.11 pc; 590-790 Myr), UGCS J08451066+2148171 (L1.5 ± 0.5) and UGCS J08301935+2003293 (no spectroscopic classification). We resolved UGCS J08451066+2148171 into a binary system in the near-infrared, with a K-ban…