Debris Disks in the Upper Scorpius OB Association (2009)
Carpenter, John M., Mamajek, Eric E., Hillenbrand , Lynne A., Meyer, Michael R.
We present MIPS 24 μm and 70 μm photometry for 205 members of the Upper Scorpius OB Association. These data are combined with published MIPS photometry for 15 additional association members to...
Debris Disks in the Upper Scorpius OB Association (2009)
Carpenter, John M., Mamajek, Eric E., Hillenbrand, Lynne A., Meyer, Michael R.
We present MIPS 24um and 70um photometry for 205 members of the Upper Scorpius OB Association. These data are combined with published MIPS photometry for 15 additional association members to assess...
On the Emergent Spectra of Hot Protoplanet Collision Afterglows (2009)
Miller-Ricci, Eliza, Meyer, Michael R., Seager, Sara, Elkins-Tanton, Linda
We explore the appearance of terrestrial planets in formation by studying the emergent spectra of hot molten protoplanets during their collisional formation. While such collisions are rare, the...
Circumstellar Disk Evolution: Constraining Theories of Planet Formation (2009)
Observations of circumstellar disks around stars as a function of stellar properties such as mass, metallicity, multiplicity, and age, provide constraints on theories concerning the formation and...
Cortes, Stephanie R., Meyer, Michael R., Carpenter, John M., Pascucci, Ilaria, Schneider, Glenn, Wong, Tony, ...
We present Australia Telescope Compact Array interferometric observations of the old (13 Myr), nearby (86 pc) classical T Tauri star (cTTS), PDS 66. Unresolved 3 and 12 mm continuum emission is...
Timothy R. Hughes, Matthew J. Marton, Allan R. Jones, Christopher J. Roberts, Christopher D. Armour, Holly A. Bennett, ...
Means have been devised to survey gene functions en masse either computationally (Marcotte et al., 1999) or experimentally; among these, highly parallel assays of thousands of mapped mutants...
Handbook of Star Forming Regions Vol. I Astronomical Society of the Pacific, 2008 (2009)
Bo Reipurth, Michael R. Meyer, Kevin Flaherty, Joanna L. Levine, Brendan P. Bowler, Ryo Kandori
Abstract. We review star formation in the southern L1630 molecular cloud (also known as Orion B) as well as the relationship between the young stellar populations and the remnant molecular gas. We...
Cortes, Stephanie R., Meyer, Michael R., Carpenter, John M., Pascucci, Ilaria, Schneider, Glenn, Wong, Tony, ...
We present ATCA interferometric observations of the old (13 Myr), nearby (86pc) classical T Tauri star, PDS 66. Unresolved 3 and 12 mm continuum emission is detected towards PDS 66, and upper limits...
The young active star SAO 51891 (V383 Lac) (2009)
Biazzo, Katia, Frasca, Antonio, Marilli, Ettore, Covino, Elvira, Alcala', Juan M., Cakirli, Omur, ...
Our aim is investigating surface inhomogeneities of the young late-type star SAO51891, from photosphere to upper chromosphere, analyzing contemporaneous high-resolution spectra and broad-band...
Carpenter, John M., Bouwman, Jeroen, Mamajek, Eric E., Meyer, Michael R., Hillenbrand, Lynne A., Backman, Dana E., ...
We present Spitzer photometric (IRAC and MIPS) and spectroscopic (IRS low resolution) observations for 314 stars in the Formation and Evolution of Planetary Systems Legacy program. These data are...
Hinz, Philip M., Kenyon, Scott, Meyer, Michael R., Boss, Alan, Angel, Roger
The detection of lower mass planets now being reported via radial velocity and microlensing surveys suggests that they may be ubiquitous. If missions such as Kepler are able to confirm this, the...
Carpenter, John M., Bouwman, Jeroen, Silverstone, Murray D., Kim, Jinyoung Serena, Stauffer, John, Cohen, Martin, ...
We present the science database produced by the Formation and Evolution of Planetary Systems (FEPS) Spitzer Legacy program. Data reduction and validation procedures for the IRAC, MIPS, and IRS...
Kenworthy, Matthew A., Mamajek, Eric E., Hinz, Philip M., Meyer, Michael R., Heinze, Aren N., Miller, Douglas L., ...
A candidate < 3 Jupiter mass, extrasolar planet was recently imaged by Kalas et al. (2008) using HST/ACS at 12.7" (96 AU) separation from the nearby (d = 7.7 pc) young (~200 Myr) A2V star Fomalhaut....
Carpenter, John M., Bouwman, Jeroen, Mamajek, Eric E., Meyer, Michael R., Hillenbrand, Lynne A., Backman, Dana E., ...
We present Spitzer photometric (IRAC and MIPS) and spectroscopic (IRS low resolution) observations for 314 stars in the Formation and Evolution of Planetary Systems (FEPS) Legacy program. These data...
Carpenter, John M., Bouwman, Jeroen, Silverstone, Murray D., Kim, Jinyoung Serena, Stauffer, John, Cohen, Martin, ...
We present the science database produced by the Formation and Evolution of Planetary Systems (FEPS) Spitzer Legacy program. Data reduction and validation procedures for the IRAC, MIPS, and IRS...
Hillenbrand, Lynne A., Carpenter, John M., Kim, Jinyoung Serena, Meyer, Michael R., Backman, Dana E., Moro-Martín, Amaya, ...
We report detection of cool dust surrounding solar-type stars from observations performed as part of the Spitzer Legacy Science Program FEPS. From a sample of 328 stars having ages ~0.003-3 Gyr we...
Hillenbrand, Lynne A., Carpenter, John M., Kim, Jinyoung Serena, Meyer, Michael R., Backman, Dana E., Moro-Martín, Amaya, ...
We report detection of cool dust surrounding solar-type stars from observations performed as part of the Spitzer Legacy Science Program FEPS. From a sample of 328 stars having ages ~0.003-3 Gyr we...
Carpenter, John M., Bouwman, Jeroen, Silverstone, Murray D., Kim, Jinyoung Serena, Stauffer, John, Cohen, Martin, ...
We present the science database produced by the Formation and Evolution of Planetary Systems (FEPS) Spitzer Legacy program. Data reduction and validation procedures for the IRAC, MIPS, and IRS...
Hillenbrand, Lynne A., Carpenter, John M., Kim, Jinyoung Serena, Meyer, Michael R., Backman, Dana E., Moro-Martin, Amaya, ...
(abbreviated) We report detection with the Spitzer Space Telescope of cool dust surrounding solar type stars. The observations were performed as part of the Legacy Science Program, ``Formation and...
The moth : an unusual circumstellar structure associated with HD 61005 (2007)
Hines, Dean C., Schneider, Glenn, Hollenbach, David, Mamajek, Eric E., Hillenbrand, Lynne A., Metchev, Stanimir A., ...
We present the discovery of an unusual spatially resolved circumstellar structure associated with the ≈90 Myr, nearby, G dwarf star HD 61005. Observations from the FEPS Spitzer Legacy Science...
Mamajek, Eric E., Meyer, Michael R.
We introduce an alternative hypothesis to explain the very low luminosity of the cool (L-type) companion to the ~25 M_Jup ~8 Myr-old brown dwarf 2M1207A. Recently, Mohanty et al. (2007) found that...
The dust, planetesimals and planets of HD 38529 (2007)
Moro-Martin, Amaya, Malhotra, Renu, Carpenter, John M., Hillenbrand, Lynne A., Wolf, Sebastian, Meyer, Michael R., ...
HD 38529 is a post-main sequence G8III/IV star (3.5 Gyr old) with a planetary system consisting of at least two planets having Msin(i) of 0.8 MJup and 12.2 MJup, semimajor axes of 0.13 AU and 3.74...
Meyer, Michael R., Hillenbrand, Lynne A., Backman, Dana, Beckwith, Steve, Bouwman, Jeroen, Brooke, Tim, ...
We provide an overview of the Spitzer Legacy Program ``Formation and Evolution of Planetary Systems" (FEPS) which was proposed in 2000, begun in 2001, and executed aboard the Spitzer Space Telescope...
The dust, planetesimals, and planets of HD 38529 (2007)
Moro-Martín, Amaya, Malhotra, Renu, Carpenter, John M., Hillenbrand, Lynne A., Wolf, Sebastian, Meyer, Michael R., ...
HD 38529 is a post-main-sequence G8 III/IV star (3.5 Gyr old) with a planetary system consisting of at least two planets having Msini of 0.8 and 12.2 MJup, semimajor axes of 0.13 and 3.74 AU, and...
Are debris disks and massive planets correlated? (2007)
Moro-Martín, Amaya, Carpenter, John M., Meyer, Michael R., Hillenbrand, Lynne A., Malhotra, Renu, Hollenbach, David, ...
Using data from the Spitzer Space Telescope Legacy Science Program Formation and Evolution of Planetary Systems (FEPS), we have searched for debris disks around nine FGK stars (2-10 Gyr), known from...
The moth: an unusual circumstellar structure associated with HD 61005 (2007)
Hines, Dean C., Schneider, Glenn, Hollenbach, David, Mamajek, Eric E., Hillenbrand, Lynne A., Metchev, Stanimir A., ...
We present the discovery of an unusual spatially resolved circumstellar structure associated with the ~90 Myr, nearby, G dwarf star HD 61005. Observations from the FEPS Spitzer Legacy Science survey...
Dean C. Hines, Glenn Schneider, David Hollenbach, Eric E. Mamajek, Lynne A. Hillenbr, Stanimir A. Metchev, ...
We present the discovery of an unusual spatially resolved circumstellar structure associated with the ≈90 Myr, nearby, G dwarf star HD 61005. Observations from the FEPS Spitzer Legacy Science...
Are Debris Disks and Massive Planets Correlated? (2006)
Moro-Martín, Amaya, Carpenter, John M., Meyer, Michael R., Hillenbrand, Lynne A., Malhotra, Renu, Hollenbach, David, ...
Using data from the Spitzer Space Telescope Legacy Science Program ``Formation and Evolution of Planetary Systems'' (FEPS), we have searched for debris disks around 9 FGK stars (2-10 Gyr), known from...
HST/NICMOS Observations of NGC 1333: The Ratio of Stars to Sub-Stellar Objects (2006)
Greissl, Julia, Meyer, Michael R., Wilking, Bruce A., Fanetti, Tina, Schneider, Glenn, Greene, Thomas P., ...
We present an analysis of NICMOS photometry and low-resolution grism spectroscopy of low-mass stars and sub-stellar objects in the young star-forming region NGC 1333. Our goal is to constrain the...
Carpenter, John M., Mamajek, Eric E., Hillenbrand, Lynne A., Meyer, Michael R.
We present 4.5, 8, and 16um photometry from the Spitzer Space Telescope for 204 stars in the Upper Scorpius OB Association. The data are used to investigate the frequency and properties of...
Kundurthy, Praveen, Meyer, Michael R., Robberto, Massimo, Beckwith, Steven V. W., Herbst, Tom
We present mid-IR N-band $(\lambda_{eff} = 10.2\micron)$ photometry of a carefully selected sample of T Tauri stars thought to be single from the Taurus-Auriga molecular cloud. Infrared excesses in...
Kundurthy, Praveen, Meyer, Michael R., Robberto, Massimo, Beckwith, Steven V. W., Herbst, Tom
We present mid-IR N-band (lambdaeff=10.2 mum) photometry of a carefully selected sample of T Tauri stars thought to be single from the Taurus-Auriga molecular cloud. Infrared excesses in these stars...
Hines, Dean C., Backman, Dana E., Bouwman, Jeroen, Hillenbrand, Lynne A., Carpenter, John M., Meyer, Michael R., ...
We report the discovery of a debris system associated with the ~30 Myr old G3/5V star HD 12039 using Spitzer Space Telescope observations from 3.6-160 mum. An observed infrared excess...
HST/NICMOS Observations of NGC 1333: The Ratio of Stars to Sub-stellar Objects (2006)
Julia Greissl, Michael R. Meyer, Bruce A. Wilking, Tina Fanetti, Glenn Schneider, Thomas P. Greene, ...
We present an analysis of NICMOS photometry and low-resolution grism spectroscopy of low-mass stars and sub-stellar objects in the young star-forming region NGC 1333. Our goal is to constrain the...
Meyer, Michael R., Greissl, Julia
We demonstrate the feasibility of detecting directly low mass stars in unresolved super-star clusters with ages < 10 Myr using near-infrared spectroscopy at modest resolution (R ~ 1000). Such...
We summarize the progress to date of our Legacy Science Program entitled "The Formation and Evolution of Planetary Systems" (FEPS) based on observations obtained with the Spitzer Space Telescope...
Formation and Evolution of Planetary Systems: Cold Outer Disks Associated with Sun-like stars (2005)
Kim, Jinyoung Serena, Hines, Dean C., Backman, Dana E., Hillenbrand, Lynne A., Meyer, Michael R., Rodmann, Jens, ...
We present the discovery of debris systems around three solar mass stars based upon observations performed with the Spitzer Space Telescope as part of a Legacy Science Program, ``the Formation and...
Wilking, Bruce A., Meyer, Michael R., Robinson, John G., Greene, Thomas P.
We present the results of optical spectroscopy of 139 stars obtained with the Hydra multi-object spectrograph. The objects extend over a 1.3 square degree area surrounding the main cloud of the rho...
Formation and evolution of planetary systems: Cold outer disks associated with sun-like stars (2005)
Kim, Jinyoung Serena, Hines, Dean C., Backman, Dana E., Hillenbrand, Lynne A., Meyer, Michael R., Rodmann, Jens, ...
We present the discovery of debris systems around three Sun-like stars based on observations performed with the Spitzer Space Telescope as part of a Legacy Science Program, ``The Formation and...
Mamajek, Eric E., Meyer, Michael R., Hinz, Philip M., Hoffmann, William F., Cohen, Martin, Hora, Joseph L.
We have conducted an N-band survey of 14 young stars in the ~30 Myr-old Tucana-Horologium Association to search for evidence of warm, circumstellar dust disks. Using the MIRAC-BLINC camera on the...
Klio: A 5 micron camera for the detection of giant exoplanets (2003)
Freed, Melanie, Hinz, Philip M., Meyer, Michael R.
We plan to take advantage of the unprecedented combination of low thermal background and high resolution provided by the 6.5m MMT's adaptive secondary mirror, to target the 3-5 micron atmospheric...
Low Mass Stars and Substellar Objects in the NGC 1333 Molecular Cloud (2003)
Wilking, Bruce A., Meyer, Michael R., Greene, Thomas P., Mikhail, Ayman, Carlson, Glenn
We present the results of near-infrared imaging and low-resolution near- infrared spectroscopy of low mass objects in the NGC 1333 molecular cloud. A JHK survey of an 11.4' x 11.7' area of the...
Detection of cool dust around the G2V star HD 107146 (2003)
Williams, Jonathan P., Najita, Joan, Liu, Michael C., Bottinelli, Sandrine, Carpenter, John M., Hillenbrand, Lynne A., ...
We report the detection of dust emission at sub-millimeter wavelengths from HD 107146, a G2V star with an age estimated to lie between 80 and 200 Myr. The emission is resolved at 450um with a size...
Castle, John, Garrett-Engele, Phil, Armour, Christopher D, Duenwald, Sven J, Loerch, Patrick M, Meyer, Michael R, ...
Abstract Microarrays offer a high-resolution means for monitoring pre-mRNA splicing on a genomic scale. We have developed a novel, unbiased amplification protocol that permits labeling of entire...
Ten-Micron Observations of Nearby Young Stars (2003)
Metchev, Stanimir A., Hillenbrand, Lynne A., Meyer, Michael R.
(abridged) We present new 10-micron photometry of 21 nearby young stars obtained at the Palomar 5-meter and at the Keck I 10-meter telescopes as part of a program to search for dust in the habitable...
Liu, Wilson M., Meyer, Michael R., Cotera, Angela S., Young, Erick T.
We present an analysis of NICMOS observations of the embedded cluster associated with NGC 2024. An analysis of the cluster color-magnitude diagram (CMD) using the models of D'Antona & Mazzitelli...
Gravity Indicators in the Near-Infrared Spectra of Brown Dwarfs (2003)
Gorlova, Nadya, Meyer, Michael R., Liebert, Jim, Rieke, George H.
We investigate the sensitivity to temperature and gravity of the strong absorption features in the J- and K-band spectra of substellar objects. We compare the spectra of giants and young M dwarfs (of...
Near-Infrared Spectroscopy and Young Stellar Populations (2003)
Over the past decade, tremendous progress has been made in applying the techniques of MK classification to spectra obtained from 1-5 microns. This spectral region is rich in atomic and molecular...
Beyond the Cosmic Veil: Star and Planet Formation Research after SIRTF and NGST (2002)
How do planets form from circumstellar disks of gas and dust? What physical processes are responsible for determining the final masses of forming stars and ultimately the initial mass function (IMF)?...
Evolution of Brown Dwarf Atmospheres: Investigating Physical Parameters from Near-IR Spectra (2002)
Gorlova, Nadya, Meyer, Michael R., Liebert, Jim, Rieke, George H.
We obtained near-infrared spectra of a sample of very low mass objects as a function of age in order to investigate the temperature and surface gravity sensitivity of several features in the J and K...
Post-T Tauri Stars in the Nearest OB Association (2002)
Mamajek, Eric E., Meyer, Michael R., Liebert, James
We present results of a spectroscopic survey of X-ray- and proper motion-selected samples of late-type stars in the Lower Cen-Cru (LCC) and Upper Cen-Lup (UCL) subgroups of the nearest OB...
Near-Infrared Photometric Variability of Stars Toward the Chamaeleon I Molecular Cloud (2002)
Carpenter, John M., Hillenbrand, Lynne A., Skrutskie, M. F., Meyer, Michael R.
We present the results of a J, H, and K_s photometric monitoring campaign of a 0.72 x 6 sq deg. area centered on the Chamaeleon I star forming region. Data were obtained on 15 separate nights over a...
A disrupted circumstellar torus inside eta Carinae's Homunculus Nebula (2002)
Smith, Nathan, Gehrz, Robert D., Hinz, Phillip M., Hoffmann, William F., Mamajek, Eric E., Meyer, Michael R., ...
We present thermal infrared images of the bipolar nebula surrounding eta Carinae at six wavelengths from 4.8 to 24.5 microns. These were obtained with the MIRAC3 camera system at the Magellan...
Structure and Evolution of Circumstellar Disks Around Young Stars: New Views from ISO (2000)
Meyer, Michael R., Beckwith, Steven V. W.
A question central to understanding the origin of our solar system is: how do planets form in circumstellar disks around young stars? Because of the complex nature of the physical processes involved,...
Near-Infrared Classification Spectroscopy: J-Band Spectra of Fundamental MK Standards (2000)
Wallace, Lloyd, Meyer, Michael R., Hinkle, Kenneth, Edwards, Suzan
We present a catalog of J-band spectra for 88 fundamental MK standard stars observed at a resolving power of R ~ 3000. This contribution serves as a companion atlas to the K-band spectra published by...
Silicate Emission in T Tauri Stars: Evidence for Disk Atmospheres? (1999)
Natta, Antonella, Meyer, Michael R., Beckwith, Steven V. W.
We present low-resolution mid-infrared spectra of nine classical T Tauri stars associated with the Chamaeleon I dark cloud. The data were obtained with the PHOT-S instrument on-board the Infrared...
Meyer, Michael R., Adams, Fred C., Hillenbrand, Lynne A., Carpenter, John M., Larson, Richard B.
We summarize recent observational and theoretical progress aimed at understanding the origin of the stellar initial mass function (IMF) with specific focus on galactic star-forming regions. We...
Spectroscopy of Brown Dwarf Candidates in the rho Ophiuchi Molecular Core (1998)
Wilking, Bruce A., Greene, Thomas P., Meyer, Michael R.
We present an analysis of low resolution infrared spectra for 20 brown dwarf candidates in the core of the $\rho$ Ophiuchi molecular cloud. Fifteen of the sources display absorption-line spectra...
Near-Infrared Classification Spectroscopy: H-band Spectra of Fundamental MK Standards (1998)
Meyer, Michael R., Edwards, Suzan, Hinkle, Kenneth H., Strom, Stephen E.
We present a catalogue of H-band spectra for 85 stars of approximately solar abundance observed at a resolving power of 3000 with the KPNO Mayall 4m FTS. The atlas covers spectral types O7-M5 and...
Magnetospheric Accretion and PMS Stellar Masses (1998)
Bonnell, Ian A., Smith, Kester W., Meyer, Michael R., Tout, Christopher A., Folha, Daniel F. M., Emerson, James P.
We present a method of determining lower limits on the masses of pre-main-sequence (PMS) stars and so constraining the PMS evolutionary tracks. This method uses the red-shifted absorption feature...
Meyer, Michael R., Beckwith, S. V. W., Herbst, T. M., Robberto, M.
We report mid--IR observations of two young stars found in the Taurus dark cloud spatially resolving for the first time their 10 $\mu$m emission. The weak-emission T Tauri star DI Tau, tentatively...
Natarajan, Krishnamurthy, Meyer, Michael R., Jackson, Belinda M., Slade, David, Roberts, Christopher, Hinnebusch, Alan G., ...
Starvation for amino acids induces Gcn4p, a transcriptional activator of amino acid biosynthetic genes in Saccharomyces cerevisiae. In an effort to identify all genes regulated by Gcn4p during amino...
Castle, John, Garrett-Engele, Phil, Armour, Christopher D, Duenwald, Sven J, Loerch, Patrick M, Meyer, Michael R, ...
A novel, unbiased amplification protocol has been developed that permits labeling of entire transcripts. Also, hybridization conditions, probe characteristics, and analysis algorithms were optimized...
Natarajan, Krishnamurthy, Meyer, Michael R., Jackson, Belinda M., Slade, David, Roberts, Christopher, Hinnebusch, Alan G., ...
Starvation for amino acids induces Gcn4p, a transcriptional activator of amino acid biosynthetic genes in Saccharomyces cerevisiae. In an effort to identify all genes regulated by Gcn4p during amino...
Castle, John, Garrett-Engele, Phil, Armour, Christopher D, Duenwald, Sven J, Loerch, Patrick M, Meyer, Michael R, ...
A novel, unbiased amplification protocol has been developed that permits labeling of entire transcripts. Also, hybridization conditions, probe characteristics, and analysis algorithms were optimized...