|Proposal Number||Subject Category||PI Name||Target Name||Total Chandra Time||Title|
|09200909||Stars and WD||Nuria Calvet||T6/SZ Cha, T35/SZ27, IC348, NGC 2068/2071||150ks||Probing the Gas in the Planet Forming Regions of Protoplanetary Disks|
|09400910||BH AND NS BINARIES||Kevin Hurley||TOO TBD||30ks||Spitzer-Chandra ToO Observations of a Short Duration GRB|
Subject Category: Stars and WD
Proposal Number: 09200909
Title: Probing the Gas in the Planet Forming Regions of Protoplanetary Disks
PI Name: Nuria Calvet
The origin of planets is intricately tied to the evolution of primeval disks. The finer details of how the disk materi al evolves from an initially well-mixed distribution of gas and dust to a system composed mostly of large solids and gas giant s like our own solar system is not well understood and is a fundamental question in astronomy. We can refine theories of plane t formation and develop timescales for the evolution of planetary systems by studying the inner, planet-forming regions of pro toplanetary disks.
Subject Category: BH AND NS BINARIES
Proposal Number: 09400910
Title: Spitzer-Chandra ToO Observations of a Short Duration GRB
PI Name: Kevin C Hurley
We propose an ambitious multiwavelenth approach to the short GRB problem, leveraging Spitzer with Chandra as well as n umerous ground−based telescopes. By measuring the broad-band spectrum of the afterglow and any concurrent "mini-supernova" over a wide range of wavelengths at several epochs, we can distinguish between models proposed to explain this type of burst. We will constrain the energetics of the explosion and the short GRB bursting rate (an important number for grav itational wave observatories), and measure with unprecedented detail the stellar content of a short burst host galaxy. Given t he high impact nature of these observations and the rarity of short bursts, we are requesting multiepoch Target of Opportunity observations on a single event in Cycle 4.