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Dec 15, 2009

Generation of radiative knots in a randomly pulsed protostellar jet I…

HH objects are characterized by a complex knotty morphology detected mainly along the axis of protostellar jets in a wide range of bands. Evidence of…
Jan 18, 2017

CSI 2264: Simultaneous optical and X-ray variability in pre-Main Se…

Pre-main sequence stars are variable sources. In stars with disks, this variability is related to the morphology of the inner circumstellar region (<…
Mar 26, 2019

Photo-evaporation of close-in gas giants orbiting around G and M stars

X-rays and extreme ultraviolet radiation impacting on a gas produce a variety of effects that, depending on the electron content, may provide a signi…
Jul 31, 2013

Pre-main sequence stars older than 8 Myr in the Eagle Nebula

Attention is given to a population of 110 stars in the NGC 6611 cluster of the Eagle Nebula that have prominent near-infrared (NIR) excess and optica…
Jun 28, 2016

Modeling the shock-cloud interaction in SN 1006: unveiling the origin…

The supernova remnant SN 1006 is a source of high-energy particles and its southwestern limb is interacting with a dense ambient cloud, thus being a …
Jul 24, 2009

A Chandra and Spitzer census of the young star cluster in the reflect…

The reflection nebula NGC 7129 has long been known to be a site of recent star formation as evidenced, e.g., by the presence of deeply embedded proto…
Jun 25, 2009

Results from DROXO. II. - [Ne II] and X-ray emission from Rho Ophiuch…

The infrared [Ne II] and [Ne III] fine structure lines at 12.81um and 15.55um are predicted to trace the circumstellar disk gas subject to X-ray heat…
Oct 10, 2008

Further X-ray detections of Herbig stars

The interpretation of X-ray detections from Herbig Ae/Be stars is disputed as it is not clear if these intermediate-mass pre-main sequence stars are …
Oct 10, 2014

Magnetohydrodynamic modeling of the accretion shocks in classical T …

We investigate the properties of X-ray emission from accretion shocks in classical T Tauri stars (CTTSs), generated where the infalling material impa…
Apr 04, 2012

The close T Tauri binary system V4046 Sgr: Rotationally modulated X-r…

We report initial results from a quasi-simultaneous X-ray/optical observing campaign targeting V4046 Sgr, a close, synchronous-rotating classical T T…
Sep 11, 2017

The Gaia-ESO Survey and CSI 2264: Substructures, disks, and sequentia…

We explore the structure and star formation history of the open cluster NGC 2264 (~3 Myr). We combined spectroscopic data from the Gaia-ESO Survey (G…
Jul 01, 2008

Circumstellar Disks in the Outer Galaxy: the Star-Forming Region NGC …

It is still debated whether star formation process depends on environment. In particular it is yet unclear whether star formation in the outer Galaxy…
Oct 27, 2016

CSI 2264: Investigating rotation and its connection with disk accreti…

The low spin rates measured for solar-type stars at an age of a few Myr (~10% of the break-up velocity) indicate that some mechanism of angular momen…
Oct 25, 2012

X-ray variability of PMS stars - Toward an explanation of the differe…

The intense X-ray emission from coronae and accretion shocks in young PMS stars is likely to play an important role in the evolution and dispersal of…
Jun 10, 2013

Spectroscopic observations of blue stars with infrared excesses in NG…

The young open cluster NGC 6611 includes among its candidate members a class of peculiar objects with interesting properties: blue stars with infrare…
Jan 15, 2016

EUV flickering of solar coronal loops: a new diagnostic of coronal …

A previous work of ours found the best agreement between EUV light curves observed in an active region core (with evidence of super-hot plasma) and t…
Mar 31, 2015

Spatial distribution of X-ray emitting ejecta in Tycho's SNR: indic…

Young supernova remnants show a characteristic ejecta-dominated X-ray emission that allows us to probe the products of the explosive nucleosynthesis …
Apr 01, 2009

Quantifying the contamination by old main-sequence stars in young mov…

The associations and moving groups of young stars are excellent laboratories for investigating stellar formation in the solar neighborhood. Previous …
Jan 09, 2018

Detection of X-ray flares from AX J1714.1-3912, the unidentified sour…

Molecular clouds are predicted to emit nonthermal X-rays when they are close to particle-accelerating supernova remnants (SNRs), and the hard X-ray s…
Jul 12, 2007

Emission Line Variability of the Accreting Young Brown Dwarf 2MASSW …

We have obtained a series of high-resolution optical spectra for the brown dwarf 2MASSW J1207334-393254 (2M1207) using the ESO Very Large Telescope w…
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