Accepted Cycle 13 Observing Proposals

GALACTIC DIFFUSE EMISSION & SURVEYS

Proposal Number	Subject Category	PI Name	Title
13910111	GALACTIC DIFFUSE EMISSION AND SURVEYS	Smith	X-ray Halo of SMC X-1: A New View on a Unique Dust Population

Subject Category: GALACTIC DIFFUSE EMISSION AND SURVEYS

Proposal Number: 13910111

Title: X-ray Halo of SMC X-1: A New View on a Unique Dust Population

PI Name: Randall Smith

The Small Magellanic Cloud (SMC) provides a unique laboratory for studying the influence of metallicity and star formation on dust evolution in a different ISM, due both to its proximity and low metal abundances. This environment seems to mimic starburst galaxies, making the study of the SMC ISM important not only in itself, but also for understanding the evolution of metals in the Universe. Multiple studies have shown that the dust in the SMC is strikingly different from that in the Milky Way or even the Large Magellanic Cloud, although the origin of these differences is unknown. By measuring the X-ray halo around the bright HMXB SMC X-1, we will probe the SMC dust in a new fashion and learn more about the dust density, porosity, and possibly even its composition and origin.

R.A.	Dec.	Target Name	Det.	Grating	Exp.Time
01:17:05.10	-73:26:36.00	SMC X-1	HRC-I	NONE	75

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