Publications (10)
2020 Vision: Towards a Sustainable OIR System
Sally Oey, Tom Maccarone, Fred Walter +16
Open-access telescopes of all apertures are needed to operate a competitive and efficient national science program. While larger facilities contribute light-gathering power and ang…
The Extreme Outer Regions of Disk Galaxies: I. Chemical Abundances of HII Regions
Annette M. N. Ferguson, Jay Gallagher, Rosemary F. G. Wyse
We present the first results of an ongoing project to investigate the present-day chemical abundances of the extreme outer parts of galactic disks, as probed by the emission line s…
Chandra High Energy Transmission Gratings Spectra of V3890 Sgr
Marina Orio, Jeremy J. Drake, Jan-Uwe Ness +13
The recurrent nova (RN) V3890 Sgr was observed during the 7th day after the onset of its most recent outburst, with the Chandra ACIS-S camera and High Energy Transmission Gratings…
Star Cluster Analyses from Multi-Band Photometry: the Key Advantage of SALT's U-band Sensitivity
Uta Fritze - v. Alvensleben, Polychronis Papaderos, Peter Anders +3
Conventionally, CMD analyses of nearby star clusters are based on observations in 2 passbands. They are plagued by considerable degeneracies between age, metallicity, distance (and…
Spitzer Survey of the Large Magellanic Cloud, Surveying the Agents of a Galaxy's Evolution (SAGE) I: Overview and Initial Results
Margaret Meixner, Karl D. Gordon, Remy Indebetouw +46
We are performing a uniform and unbiased, ~7x7 degrees imaging survey of the Large Magellanic Cloud (LMC), using the IRAC and MIPS instruments on board the Spitzer Space Telescope…
X-ray emission from the nuclear region of Arp 220
Alessandro Paggi, Giuseppina Fabbiano, Guido Risaliti +6
We present an imaging and spectral analysis of the nuclear region of the ULIRG merger Arp 220, using deep \textit{Chandra}-ACIS observations summing up to \(\sim 300\mbox{ ks}\). N…