The ISM SNAP Surveys were Cycle-8, 9, and 11 Hubble Space Telescope
observing programs to use the
Space
Telescope Imaging Spectrograph (STIS) to observe
interstellar absorption lines toward large samples of O and
B-type stars. High resolution (R~46,000 or 114,000) echelle
spectra were obtained for numerous interstellar absorption lines.
By using the SNAPSHOT observing mode, which is used to fill in any
gaps in the observing schedule, we successfully obtained spectra of
54, 28, and 31 stars respectively with typical S/N-ratios of
30 to 45 per pixel.
The Cycle-8 observing program ( GO8241) was designed to obtain R~114,000 spectra between 1160 and 1360Å to explore the properties of the diffuse interstellar medium, including the abundances of a number of elements including O, Mg, P, Ni, Cu, Ge, and Kr.
The Cycle-9 ( GO8662) and Cycle-11 ( GO9434) observing programs were designed to obtain either R~46,000 spectra between 1150 and 1700Å or R~114,000 spectra between 1388 and 1590Å to explore the properties of the hot interstellar medium by observing lines of highly ionized C, N, and Si.
Selected Publications:
Space Telescope Imaging Spectrograph Observations of Interstellar
Oxygen and Krypton in Translucent Clouds
Cartledge, S. I. B., Lauroesch, J. T., Meyer, D. M. & Sofia,
U. J. 2001, ApJ, 562, 394
Abundances and Physical Conditions in the Interstellar Gas toward
HD 192639
Sonnentrucker, P., Friedman, S. D., Welty, D. E., York, D. G.
& Snow, T. P. 2002, ApJ, 576, 241
Origins of the Highly Ionized Gas along the Line of Sight toward HD 116852
Fox, A. J., Savage, B. D., Sembach, K. R., Fabian, D., Richter, P.,
Meyer, D. M., Lauroesch, J. T. & Howk, J. C. 2003, ApJ,
582, 793
Constraints on the Ionization Balance of Hot-Star Winds from FUSE
Observations of O Stars in the Large Magellanic Cloud
Massa, D., Fullerton, A. W., Sonneborn, G. & Hutchings, J. B.
2003, ApJ, 586, 996
Oxygen Gas-Phase Abundance Revisited
André, M. K., Oliveira, C. M., Howk, J. C., Ferlet, R., Désert, J.-M.,
Hébrard, G., Lacour, S., Lecavelier des Étangs, A., Vidal-Madjar, A.
& Moos, H. W. 2003, ApJ, 591, 1000
On the Origin of the High-Ionization Intermediate-Velocity
Gas toward HD 14434
Knauth, D. C., Howk, J. C., Sembach, K. R., Lauroesch, J. T. &
Meyer, D. M. 2003, ApJ, 592, 964
Abundances and Physical Conditions in the Interstellar Gas toward
HD 185418
Sonnentrucker, P., Friedman, S. D., Welty, D. E., York, D. G.
& Snow, T. P. 2003, ApJ, 596, 350
The Homogeneity of Interstellar Krypton in the Galactic
Disk
Cartledge, S. I. B., Lauroesch, J. T. & Meyer, D. M. 2003,
ApJ, 597, 408
Tiny-scale molecular structures in the Magellanic Clouds.
I. FUSE, HST and VLT observations
André, M. K., Le Petit, F., Sonnentrucker, P., Ferlet, R., Roueff, E.,
Civeit, T., Désert, J.-. M., Lacour, S. & Vidal-Madjar, A.
2004, A&A, 422, 483
The Homogeneity of Interstellar Oxygen in the Galactic
Disk
Cartledge, S. I. B., Lauroesch, J. T., Meyer, D. M. & Sofia, U. J.
2004, ApJ, 613, 1037
Effects of Metallicity on the Rotational Velocities of Massive
Stars
Penny, L. R., Sprague, A. J., Seago, G. & Gies, D. R. 2004,
ApJ, 617, 1316
The Homogeneity of Interstellar Elemental Abundances in the
Galactic Disk
Cartledge, S. I. B., Lauroesch, J. T., Meyer, D. M. & Sofia, U. J.
2006, astro-ph/0512312, to appear in ApJ