Protoplanetary disks

Session

Protoplanetary disks (chair A. Frasca)

26 Jun 2018, 14:30

41. Pushing Adaptive Optics to the extreme: better, bluer and wider (I)

Roberto Ragazzoni

26/06/2018, 14:30

6. SHARK-VIS: the High Resolution Visible Imager of LBT

Fernando Pedichini (Istituto Nazionale di Astrofisica (INAF))

26/06/2018, 15:00

Talk

The fore coming SHARK-VIS high resolution imaging camera will exploit the LBT adaptive optics performance at visible wavelengths (400-1000 nm) yielding a diffraction limited psf core with a FWHM of 18 mas at H-alpha. This resolution together with the high frame rate and the use of peculiar post processing techniques will allow the observer to reach contrast of 1e-5 at 100 mas on sources...

42. Five years that changed our optical/NIR view of protoplanetary disks (I)

Antonio Garufi

26/06/2018, 15:20

The onset of optical/NIR surveys of young stars imaged with Polarimetric Differential Imaging (PDI) has been a game changer for our understanding of protoplanetary disks. Thanks to the contributed effort of Subaru/HiCiao, VLT/NACO, VLT/SPHERE, and GPI, we could resolve with unprecedented resolution several sub-structures at the disk surface from few to hundreds of au from the star. We show the...

14. Photoevaporation and close encounters: how the environment around Cygnus~OB2 affects the evolution of protoplanetary disks

Mario Guarcello (INAF - Osservatorio Astronomico di Palermo)

26/06/2018, 15:50

Talk

Cygnus OB2 is the most massive stellar association within 2 kpc from the Sun. Given its large content of massive stars, counting tens of O and 3 WR stars, and thousands of young low mass stars, Cygnus OB2 is the best target to study how massive stars affect the star formation process in the parental cloud and the evolution of nearby protoplanetary disks.
I will present the results of our study...

43. Revealing the evolution of disks at 0.01-10 au from high-resolution IR spectroscopy (I)

Andrea Banzatti (streaming)

26/06/2018, 16:40

I will present results from a multi-wavelength and multi-tracer campaign to observe the evolution of protoplanetary disks at 0.01-10 au at the time of exoplanet formation. The backbone of this work is the combined analysis of recent surveys of moderate-to-high-resolution spectroscopy (R ~ 700- 100,000) of molecular gas emission at infrared wavelengths (2.9-35 um), as collected from a suite of...

27. Laboratory investigations aimed to study the chemical and physical properties of protoplanetary disk dust

Maria Elisabetta Palumbo (Istituto Nazionale di Astrofisica (INAF))

26/06/2018, 17:10

Talk

Infrared observations of edge-on protoplanetary disks clearly show the presence of absorption features assigned to refractory dust grains and to solid phase molecules which form the so called icy grain mantles. It is generally accepted that in protoplanetary disks dust grains suffer from thermal and energetic processing (i.e. UV and ion irradiation) caused by the central protostar.
The...

32. Three stars, two disks, one system

Elena Sissa (Istituto Nazionale di Astrofisica (INAF))

26/06/2018, 17:30

Talk

V4046 Sgr is a close binary with accretion signature.
GSC 07396-00759 is instead a very active but not accreting M1-type star.
These three form a dynamically bound system, likely member of the Beta Pictoris Moving Group.
Although V4046 Sgr is surrounded by a gas-rich disk, the characteristics of the newly detected GSC disk all together tend to favor an evolved/debris disk nature over a...

25. The GENESIS-SKA project: looking for Solar System analogs

Claudio Codella (INAF - Osservatorio Astrofisico di Arcetri)

26/06/2018, 17:50

Talk

The recipe to make a habitable planet like our own Earth requires a relatively small rocky planet,
at the right distance from the host star, with a not-too-thick atmosphere which should be rich in volatiles
and capable of developing complex organic molecules chemistry. Searches for exoplanets have shown
a large degree of diversity among planetary systems, but have left still unanswered the...

26. Are we alone in the Universe? A unique opportunity for science outreach in GENESIS-SKA project context

Caterina Boccato (INAF Padova)

26/06/2018, 18:10

Talk

The GENESIS-SKA project is supported as PRIN-INAF and its main goal is to study dust evolution, planet formation, and pre-biotic chemical complexity, in the context of preparation of SKA Key Programmes. The funding PRIN-INAF also accounts for communication, public and industrial outreach of the projects’ scientific goals and results. This is the reason why GENESIS-SKA has a dedicate outreach...