Archivi tag: Infrared

The Universe of Digital Sky Surveys

Over the last decades, digital sky surveys performed with dedicated telescopes and finely tuned wide field cameras, have revolutionized astronomy. They have become the main tool to investigate the nearby and far away universe, thus providing new insights in the understanding of the galaxy structure and assembly across time, the dark components ofthe universe, as well as of the history of our own galaxy. They also have opened the time domain leading to a new understanding of the transient phenomena in the universe. Continua a leggere The Universe of Digital Sky Surveys

Exoplanets and Disks: Their Formation and Diversity II

Protoplanetary disks around young stars are the sites of planetary formation. Their detailed information has been obtained by recent high spatial resolution infrared and optical observations from both ground and space, and wide varieties of disk morphology and disk composition are uncovered. At longer wavelengths, ALMA has started its early science operation and will explore physical and chemical processing of gas and dust components in the disks. This diversity of disk properties is certainly the “seeds” for the well known diversity of more than 800 exoplanets so far detected. Therefore, deep understanding of the link between the protoplanetary disks and exoplanets is becoming more and more important. New coronagraphs on the 8-m class telescopes such as Subaru/HiCIAO/AO188 (the SEEDS project) and Gemini/NICI are currently exploring these areas, and Subaru/SCExAO, Gemini/GPI, and VLT/SPHERE will come very soon. Besides observations, both theoretical simulations for planet formation and theories and laboratory experiments for dust formation/evolution also play crucial roles for the interpretation of the link. In addition to the above direct explorations of giant exoplanets and disks, more interests are now concentrating on detection of extrasolar terrestrial planets. In order to promote the discussion of the diversity of disks and exoplanets among related researchers, we would like to host an international workshop. This conference is the second one covering the similar topic held in 2009 (hosted by NAOJ). This is also recognized as the 5th of the Subaru International Conference Series. Researchers in the fields of protoplanetary/debris disks, exoplanets, dust, and related instrumentation are encouraged to attend. We expect more than 100 people attending.

Major topics of this meeting will focus on:

  1. Direct imaging of disks/exoplanets
  2. Spectroscopy of disks/exoplanets
  3. Various approaches toward earth-like planet detection
  4. Theory for planet formation
  5. Theory and simulation of exoplanet atmospheres
  6. Dust formation and evolution in disks
  7. Current/future instrumentation for direct observations

The Universe Explored by Herschel

The Herschel First Results Symposium was held in May 2010 in the ESTEC Conference Centre. More than 400 astronomers shared in the excitement during the four memorable days of the first major scientific symposium featuring Herschel results. There have been numerous expressions of interest regarding future meetings. The organisers are now pleased to be in a position to extend an invitation to the community for a follow-up meeting. The overall objective of the meeting will be to present, discuss, and take stock of the scientific breakthroughs to date based on Herschel observations, and their impact. The symposium will feature invited and contributed talks, and poster sessions.

From Exoplanets to Distant Galaxies

The first international conference on the science of SPICA (Space Infrared Telescope for Cosmology and Astrophysics) mission will be held on 18-21 June, 2013. The conference is open to interested scientists from around the world. The primary aims of the conference are to introduce the scientific capabilities of the SPICA mission to the international community, and to foster interactions in the IR community on how to optimally utilise this new facility to further explore the physical processes in formation and evolution of planets, stars and galaxies.

Topics covered:

  • Galaxies formation and evolution as revealed in the infrared
  • The cycling of matter between stars, galaxies and the intergalactic medium
  • Planet formation and detection/Characterization of exoplanets

Infrared and Submillimeter Probes of Gas in Galaxies: From the Milky Way to the Distant Universe

Hosted by IPAC with support from the NASA Herschel and Spitzer Projects. This conference aims to explore the formation and evolution of galaxies using mostly gas tracers. Infrared and submillimeter observations gauge not only the quantity and distribution of gas in galaxies, but also the thermal and dynamical state of its various phases. Star formation and feedback involve physics that can be constrained with long wavelength observations: photoelectric heating, UV excitation, turbulence, cosmic rays, shock waves, atomic and molecular line emission, and thermal emission from dust. The conference will begin with what we know about the physical conditions of gas in the nearby universe out to z = 1, and then push outwards to earlier epochs when galaxies were forming most of their stars. Among the topics under discussion will be the mystery of dark gas, the conditions of gas in both isolated and interacting galaxies, and the role of gas in the origin of the galaxy main sequence. As we explore the results from current facilities, we hope to lay the groundwork for understanding future observations of gas and dust.