Dunham, Michael M., Jørgensen, Jes K., Merín, Bruno, Van Dishoeck, Ewine F., Alcalá, Juan M., ...
The c2d Spitzer Legacy project obtained images and photometry with both IRAC and MIPS instruments for five large, nearby molecular clouds. Three of the clouds were also mapped in dust continuum...
Evans, Neal J., Dunham, Michael M., Jørgensen, Jes K., Enoch, Melissa L., Merín, Bruno, Van Dishoeck, Ewine F., ...
Evans II, Neal J., Dunham, Michael M., Jørgensen, Jes K., Enoch, Melissa L., Merín, Bruno, Van Dishoeck, Ewine F., ...
(Abridged) The c2d Spitzer Legacy project obtained images and photometry with both IRAC and MIPS instruments for five large, nearby molecular clouds. This paper combines information drawn from...
Far-infrared properties of M dwarfs (2008)
Gautier, Thomas N. III, Rieke, G. H., Stansberry, John, Bryden, Geoffrey C., Stapelfeldt, Karl R., Werner, Michael W., ...
We report the mid- and far-infrared properties of nearby M dwarfs. Spitzer/MIPS measurements were obtained for a sample of 62 stars at 24 μm, with subsamples of 41 and 20 stars observed at 70 μm...
A Distance-Limited Imaging Survey of Sub-Stellar Companions to Solar Neighborhood Stars (2008)
Carson, Joseph C., Hiner, Kyle D., Villar III, Gregorio G., Blaschak, Michael G., Rudolph, Alexander L., Stapelfeldt, Karl R.
We report techniques and results of a Palomar 200-inch (5 m) adaptive optics imaging survey of sub-stellar companions to solar-type stars. The survey consists of Ks coronagraphic observations of 21...
A Multi-Epoch HST Study of the Herbig-Haro Flow from XZ Tauri (2008)
Krist, John E., Stapelfeldt, Karl. R., Hester, J. Jeff, Healy, Kevin, Dwyer, Steven J., Gardner, Carl L.
We present nine epochs of Hubble Space Telescope optical imaging of the bipolar outflow from the pre-main sequence binary XZ Tauri. Our data monitors the system from 1995-2005 and includes emission...
The Photometric Variability of HH 30 (2008)
Watson, Alan M., Durán-Rojas, María Carolina, Stapelfeldt, Karl R.
HH 30 is an edge-on disk around a young stellar object. Previous imaging with the Hubble Space Telescope has show morphological variability that is possibly related to the rotation of the star or the...
Karl R. Stapelfeldt, John E. Krist, Jkrme Bouvier, Deborah L. Padgett, Christopher J. Burrows
Hubble Space Telescope images of HK Tauri reveal that the companion star in this 2.4 ” (340 AU) pre-main sequence binary system is an entirely nebulous object at visual wavelengths. HK Tau/c...
The young population of the Chamaeleon II dark cloud (2008)
Spezzi, Loredana, Alcalá, Juan M., Covino, Elvira, Frasca, Antonio, Gandolfi, Davide, Oliveira, Isa, ...
We discuss the results of the optical spectroscopic follow-up of pre-main-sequence (PMS) objects and candidates selected in the Chamaeleon II dark cloud based on data from the Spitzer Legacy survey...
Alcalá, Juan M., Spezzi, Loredana, Chapman, Nicholas, Huard, Tracy L., Jørgensen, Jes K., ...
We discuss the results from the combined IRAC and MIPS c2d Spitzer Legacy survey observations and complementary optical and NIR data of the Chamaeleon II (Cha II) dark cloud. We perform a census of...
The young population of the Chamaeleon II dark cloud (2008)
Spezzi, Loredana, Alcala', Juan M., Covino, Elvira, Frasca, Antonio, Gandolfi, Davide, Oliveira, Isa, ...
We discuss the results of the optical spectroscopic follow-up of pre-main sequence (PMS) objects and candidates selected in the Chamaeleon II dark cloud based on data from the Spitzer Legacy survey...
Padgett, Deborah L., Rebull, Luisa M., Stapelfeldt, Karl R., Chapman, Nicholas, Lai, Shih-Ping, Mundy, Lee G., ...
We present maps of 14.4 deg^2 of the Ophiuchus dark clouds observed by the Spitzer Space Telescope Multiband Imaging Photometer for Spitzer (MIPS). These high-quality maps depict both numerous point...
The photometric variability of hh 30 (2008)
Alan M. Watson, Karl R. Stapelfeldt
HH 30 es un disco visto casi de canto alrededor de un objeto estelar joven. Imagenes previas del Hubble Space Telescope muestran una variabilidad morfologica que posiblemente este relacionada con la...
Padgett, Deborah L., Rebull, Luisa M., Stapelfeldt, Karl R., Chapman, Nicholas L., Lai, Shih-Ping, Mundy, Lee G., ...
We present maps of 14.4 deg^2 of the Ophiuchus dark clouds observed by the Spitzer Space Telescope Multiband Imaging Photometer for Spitzer (MIPS). These high quality maps depict both numerous point...
The Spitzer c2d Survey of Large, Nearby, Interstellar Clouds. IV. Lupus Observed with MIPS (2007)
Chapman, Nicholas L., Lai, Shih-Ping, Mundy, Lee G., Brooke, Timothy Y., Cieza, Lucas A., ...
We present maps of 7.78 deg^2 of the Lupus molecular cloud complex at 24, 70, and 160 μm. They were made with the Spitzer Space Telescope Multiband Imaging Photometer for Spitzer (MIPS) instrument...
Watson, Alan M., Stapelfeldt, Karl R., Wood, Kenneth, Ménard, François
We review recent progress in high-resolution imaging of scattered light from disks around young stellar objects. Many new disks have been discovered or imaged in scattered light, and improved...
Far Infrared Prperties of M Dwarfs (2007)
Gautier III, Thomas. N., Rieke, G. H., Stansberry, John, Bryden, Geoffrey C., Stapelfeldt, Karl R., Werner, Michael W., ...
We report the mid- and far-infrared properties of nearby M dwarfs. Spitzer/MIPS measurements were obtained for a sample of 62 stars at 24 um, with subsamples of 41 and 20 stars observed at 70 um and...
The Spitzer c2d Survey of Large, Nearby, Interstellar Clouds. IV. Lupus Observed with MIPS (2007)
Chapman, Nicholas L., Lai, Shih-Ping, Mundy, Lee G., Evans II, Neal J., Brooke, Timothy Y., Cieza, Lucas A., ...
We present maps of 7.78 square degrees of the Lupus molecular cloud complex at 24, 70, and $160\:\mu$m. They were made with the Spitzer Space Telescope's Multiband Imaging Photometer for Spitzer...
Cieza, Lucas, Padgett, Deborah L., Stapelfeldt, Karl R., Augereau, Jean-Charles, Harvey, Paul, Evans, Neal J., ...
One of the central goals of the Spitzer Legacy Project ``From Molecular Cores to Planet-forming Disks'' (c2d) is to determine the frequency of remnant circumstellar disks around weak-line T Tauri...
The Spitzer c2d Survey of Large, Nearby, Interstellar Clouds VIII. Serpens Observed with MIPS (2007)
Harvey, Paul M., Rebull, Luisa M., Brooke, Tim, Spiesman, William J., Chapman, Nicholas, Huard, Tracy L., ...
We present maps of 1.5 square degrees of the Serpens dark cloud at 24, 70, and 160\micron observed with the Spitzer Space Telescope MIPS Camera. More than 2400 compact sources have been extracted at...
Deep Spitzer spectroscopy of the `Flying Saucer' edge-on disk: Large grains beyond 50 AU (2007)
Pontoppidan, Klaus M., Stapelfeldt, Karl R., Blake, Geoffrey A., Van Dishoeck, Ewine F., Dullemond, Cornelis P.
We present deep Spitzer-IRS low-resolution (lambda/Delta lambda ~ 100) 5-35 micron spectroscopy of the edge-on disk ``the Flying Saucer'' (2MASS J16281370-2431391) in the Ophiuchus molecular cloud....
Porras, Alicia, Jørgensen, Jes K., Allen, Lori E., Bourke, Tyler L., Alcalá, Juan M., ...
We present IRAC (3.6, 4.5, 5.8, and 8.0 μm) observations of the Chamaeleon II molecular cloud. The observed area covers about 1 deg^2 defined by A_V > 2. Analysis of the data in the 2005 c2d...
The Spitzer c2d Survey of Nearby Dense Cores. IV. Revealing the Embedded Cluster in B59 (2007)
Brooke, Timothy Y., Huard, Tracy L., Bourke, Tyler L., Boogert , A. C. Adwin, Allen, Lori E., Blake, Geoffrey A., ...
Infrared images of the dark cloud core B59 were obtained with the Spitzer Space Telescope as part of the "Cores to Disks" Legacy Science project. Photometry from 3.6-70 μm indicates at least 20...
Deep Spitzer spectroscopy of the "Flying Saucer'' edge-on disk: large grains beyond 50 AU (2007)
Pontoppidan, Klaus M., Stapelfeldt, Karl R., Blake, Geoffrey A., Van Dishoeck, Ewine F., Dullemond, Cornelis P.
We present deep Spitzer IRS low-resolution (lambda/Deltalambda~100) 5-35 mum spectroscopy of the edge-on disk the ``Flying Saucer'' (2MASS J16281370-2431391) in the Ophiuchus molecular cloud. The SED...
Porras, Alicia, Jørgensen, Jes K., Allen, Lori E., Evans II, Neal J., Bourke, Tyler L., Alcal{á}, Juan M., ...
We present IRAC (3.6, 4.5, 5.8, and 8.0 micron) observations of the Chamaeleon II molecular cloud. The observed area covers about 1 square degree defined by $A_V >2$. Analysis of the data in the 2005...
The Spitzer c2d Survey of Nearby Dense Cores: IV. Revealing the Embedded Cluster in B59 (2006)
Brooke, Timothy Y., Huard, Tracy L., Bourke, Tyler L., Boogert, A. C. Adwin, Allen, Lori E., Blake, Geoffrey A., ...
Infrared images of the dark cloud core B59 were obtained with the Spitzer Space Telescope as part of the "Cores to Disks" Legacy Science project. Photometry from 3.6-70 microns indicates at least 20...
TPF-C : status and recent progress (2006)
Traub, Wesley A., Levine, Marie, Shaklan, Stuart, Kasting, James, Angel, J. Roger, Brown, Michael E., ...
The Terrestrial Planet Finder Coronagraph (TPF-C) is a deep space mission designed to detect and characterize Earthlike planets around nearby stars. TPF-C will be able to search for signs of life on...
The Spitzer c2d survey of large, nearby, interstellar clouds. III. Perseus observed with IRAC (2006)
Jørgensen, Jes K., Harvey, Paul M., Huard, Tracy L., Allen, Lori E., Porras, Alicia, ...
We present observations of 3.86 deg to the 2nd of the Perseus molecular cloud complex with the Spitzer Space Telescope Infrared Array Camera (IRAC). The maps show strong extended emission arising...
The Optical-NIR Opacity Law in YSO Disks and Envelopes: Evidence for Dust Growth? (2006)
Alan M. Watson, Karl R. Stapelfeldt
The Optical-NIR Opacity Law in YSO Disks and Envelopes: Evidence for Dust Growth?
The Optical-NIR Opacity Law in YSO Disks and Envelopes: Evidence for Dust Growth? (2006)
Alan M. Watson, Karl R. Stapelfeldt
The Optical-NIR Opacity Law in YSO Disks and Envelopes: Evidence for Dust Growth?
The Spitzer c2d Survey of Large, Nearby, Interstellar Clouds. III. Perseus Observed with IRAC (2006)
Jorgensen, Jes K., Harvey, Paul M., Evans II, Neal J., Huard, Tracy L., Allen, Lori E., Porras, Alicia, ...
We present observations of 3.86 sq. deg. of the Perseus molecular cloud complex with the Spitzer Space Telescope Infrared Array Camera (IRAC). The maps show strong extended emission arising from...
Comparative Planetology and the Search for Life Beyond the Solar System (2006)
Beichman, Charles A., Fridlund, Malcolm, Traub, Wesley A., Stapelfeldt, Karl R., Quirrenbach, Andreas, Seager, Sara
The study of planets beyond the solar system and the search for other habitable planets and life is just beginning. Ground-based (radial velocity and transits) and space-based surveys (transits and...
Planet formation studies with the Spitzer Space Telescope (2005)
This paper will review the progress in planet formation science which Spitzer has enabled, and look forward to future contributions we can expect over the 5-year mission lifetime.
Padgett, Deborah L., Stapelfeldt, Karl R.
We observed six Herbig-Hiro object exciting stars with the IRTF CSHELL cryogenic echelle spectrometer at 1.6 and 2 microns with the intent of determining effective temperatures and vsini's from the...
W134: A New Pre-Main Sequence Double-Lined Spectroscopic Binary (2004)
Padgett, Deborah L., Stapelfeldt, Karl R.
We report the discovery that the pre-main sequence star Walker 134 in the young cluster NGC 2264 is a double-lined spectroscopic binary.
Detection of the Tip of Red Giant Branc in NGC 5128 (2004)
Soria, Roberto, Mould, Jeremy R., Watson, Alan M., Gallagher, John S. III, Ballester, Gilda E., Burrows, Christopher J., ...
We present a color-magnitude diagram of more than 10,000 stars in the halo of galaxy NGC 5128 (Centaurus A), based on WFPC2 images through the V and I filters. The position of the red-giant branch...
New debris disk candidates: 24 micron stellar excesses at 100 Myr (2004)
Gorlova, Nadya, Padgett, Deborah L., Rieke, George H., Muzerolle, James, Morrison, Jane E., Engelbracht, Chad W., ...
Sixty three members of the 100 Myr old open cluster M47 (NGC 2422) have been detected at 24 micron with Spitzer. The Be star V 378 Pup shows an excess both in the near-infrared and at 24 micron...
Spitzer Space Telescope spectroscopy of ices toward low-mass embedded protostars (2004)
Boogert, A. C. Adwin, Pontoppidan, Klaus M., Lahuis, Fred, Jørgensen, Jes K., Augereau, Jean-Charles, Blake, Geoffrey A., ...
Young, Chadwick H., Jørgensen, Jes K., Shirley, Yancy L., Kauffmann, Jens, Huard, Tracy, Lai, Shih-Ping, ...
The Circumstellar Disk of the Butterfly Star in Taurus (2003)
Wolf, Sebastian, Padgett, Deborah L., Stapelfeldt, Karl R.
We present a model of the circumstellar environment of the so-called ``Butterfly Star'' in Taurus (IRAS 04302+2247). The appearance of this young stellar object is dominated by a large circumstellar...
Stellar Populations at the Center of IC 1613 (1999)
Cole, Andrew A., Tolstoy, Eline, Gallagher, John S., Hoessel, John G., Mould, Jeremy R., Holtzman, Jon A., ...
We have observed the center of the Local Group dwarf irregular galaxy IC 1613 with WFPC2 aboard the Hubble Space Telescope in the F439W, F555W, and F814W filters. We find a dominant old stellar...
WFPC2 Observations of Compact Star Cluster Nuclei in Low Luminosity Spiral Galaxies (1999)
Matthews, Lynn D., Gallagher, John S., Krist, John E., Watson, Alan M., Burrows, Christopher J., ...
We have used the Wide Field Planetary Camera 2 aboard the Hubble Space Telescope to image the compact star cluster nuclei of the nearby, late-type, low-luminosity spiral galaxies NGC 4395, NGC 4242,...
HST/NICMOS Imaging of Disks and Envelopes Around Very Young Stars (1999)
Padgett, Deborah L., Brandner, Wolfgang, Stapelfeldt, Karl R., Strom, Stephen E., Terebey, Susan, Koerner, David
We present HST/NICMOS observations with 0.1" (15 AU) resolution of six young stellar objects in the Taurus star-formation region. The targets of our survey are three Class I IRAS sources (IRAS...