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Temperature structure and kinematics of the IRDC G035.39-00.33
Caselli, Paola; Henshaw, Jonathan D.; Wang, Ke +6 more
Aims: Infrared dark clouds represent the earliest stages of high-mass star formation. Detailed observations of their physical conditions on all physical scales are required to improve our understanding of their role in fueling star formation.
Methods: We investigate the large-scale structure of the IRDC G035.39-00.33, probing the dense g…
The spatially resolved star formation history of mergers. A comparative study of the LIRGs IC 1623, NGC 6090, NGC 2623, and Mice
González Delgado, R. M.; Di Matteo, P.; Sánchez, S. F. +8 more
This paper presents the spatially resolved star formation history (2D-SFH) of a small sample of four local mergers: the early-stage mergers IC 1623, NGC 6090, and the Mice, and the more advanced merger NGC 2623, by analyzing IFS data from the CALIFA survey and PMAS in LArr mode. Full spectral fitting techniques are applied to the datacubes to obta…
The heterogeneous coma of comet 67P/Churyumov-Gerasimenko as seen by ROSINA: H2O, CO2, and CO from September 2014 to February 2016
Lasue, J.; Wurz, P.; Altwegg, K. +25 more
Context. The ESA Rosetta mission has been investigating the environment of comet 67P/Churyumov-Gerasimenko (67P) since August 2014. Among the experiments on board the spacecraft, the ROSINA experiment (Rosetta Orbiter Spectrometer for Ion and Neutral Analysis) includes two mass spectrometers to analyse the composition of neutrals and ions and a CO…
The β Pictoris association: Catalog of photometric rotational periods of low-mass members and candidate members
Messina, S.; Medhi, B. J.; Zhang, L. +19 more
Aims: We intended to compile the most complete catalog of bona fide members and candidate members of the β Pictoris association, and to measure their rotation periods and basic properties from our own observations, public archives, and exploring the literature.
Methods: We carried out a multi-observatories campaign to get our own photome…
Astrophysical properties of star clusters in the Magellanic Clouds homogeneously estimated by ASteCA
Perren, G. I.; Vázquez, R. A.; Piatti, A. E.
Aims: We seek to produce a homogeneous catalog of astrophysical parameters of 239 resolved star clusters, located in the Small and Large Magellanic Clouds, observed in the Washington photometric system.
Methods: The cluster sample was processed with the recently introduced Automated Stellar Cluster Analysis (ASteCA) package, which ensure…
KIC 4150611: a rare multi-eclipsing quintuple with a hybrid pulsator
Kambe, E.; Maehara, H.; Hełminiak, K. G. +5 more
Aims: We aim to analyse KIC 4150611 (HD 181469) - an interesting, bright quintuple system that includes a hybrid δ Sct/γ Dor pulsator. Four periods of eclipses - 94.2, 8.65, 1.52 and 1.43 d - have been observed by the Kepler satellite, and three point sources (A, B, and C) are seen in high angular resolution images.
Methods: From spectro…
The 999th Swift gamma-ray burst: Some like it thermal. A multiwavelength study of GRB 151027A
Prandoni, I.; Covino, S.; D'Avanzo, P. +23 more
We present a multiwavelength study of GRB 151027A. This is the 999th gamma-ray burst detected by the Swift satellite and it has a densely sampled emission in the X-ray and optical band and has been observed and detected in the radio up to 140 days after the prompt. The multiwavelength light curve from 500 s to 140 days can be modelled through a st…
VALES. II. The physical conditions of interstellar gas in normal star-forming galaxies up to z = 0.2 revealed by ALMA
Ivison, R. J.; van Kampen, E.; Cooray, A. +18 more
We use new Band 3 CO(1-0) observations taken with the Atacama Large Millimeter/submillimeter Array (ALMA) to study the physical conditions in the interstellar gas of a sample of 27 dusty main-sequence star-forming galaxies at 0.03 < z < 0.2 present in the Valparaíso ALMA Line Emission Survey (VALES). The sample is drawn from far-IR bright ga…
Pre-flare coronal dimmings
Ji, H. S.; Zhang, Q. M.; Su, Y. N.
Context. Coronal dimmings are regions of decreased extreme-ultravoilet (EUV) and/or X-ray (originally Skylab, then Yohkoh/SXT) intensities, which are often associated with flares and coronal mass ejections (CMEs). The large-scale impulsive dimmings have been thoroughly observed and investigated. The pre-flare dimmings before the flare impulsive ph…
The 2015 outburst of the accretion-powered pulsar IGR J00291+5934: INTEGRAL and Swift observations
Stella, L.; Ferrigno, C.; Bozzo, E. +5 more
The pulsar IGR J00291+5934 is the fastest-known accretion-powered X-ray pulsar, discovered during a transient outburst in 2004. In this paper, we report on INTEGRAL and Swift observations during the 2015 outburst, which lasts for 25 d. The source has not been observed in outburst since 2008, suggesting that the long-term accretion rate has decreas…