Refining Exoplanet Ephemerides and Transit Observing Strategies (2009)
Kane, Stephen R., Mahadevan, Suvrath, Von Braun, Kaspar, Laughlin, Gregory, Ciardi, David R.
Transiting planet discoveries have yielded a plethora of information regarding the internal structure and atmospheres of extra-solar planets. These discoveries have been restricted to the...
Observational Window Functions in Planet Transit Surveys (2009)
Von Braun, Kaspar, Kane, Stephen R., Ciardi, David R.
The probability that an existing planetary transit is detectable in one's data is sensitively dependent upon the window function of the observations. We quantitatively characterize and provide...
Observational Window Functions in Planet Transit Surveys (2009)
Von Braun, Kaspar, Kane, Stephen R., Ciardi, David R.
The probability that an existing planetary transit is detectable in one's data is sensitively dependent upon the window function of the observations. We quantitatively characterize and provide...
Interferometric evidence for resolved warm dust in the DQ Tau system (2009)
Boden, Andrew F., Akeson, Rachel L., Sargent, Anneila I., Carpenter, John M., Ciardi, David R., Bary, Jeffrey S., ...
We report on near-infrared (IR) interferometric observations of the double-lined pre-main sequence binary system DQ Tau. We model these data with a visual orbit for DQ Tau supported by the...
Observations of V592 Cassiopeiae with the Spitzer Space Telescope—Dust in the Mid-Infrared (2009)
Hoard, D. W., Kafka, Stella, Wachter, Stefanie, Howell, Steve B., Brinkworth, Carolyn S., Ciardi, David R., ...
We present the ultraviolet-optical-infrared spectral energy distribution of the low inclination novalike cataclysmic variable (CV) V592 Cassiopeiae, including new mid-infrared observations from 3.5...
Observations of V592 Cassiopeiae with the Spitzer Space Telescope - Dust in the Mid-Infrared (2008)
Hoard, D. W., Kafka, Stella, Wachter, Stefanie, Howell, Steve B., Brinkworth, Carolyn S., Ciardi, David R., ...
We present the ultraviolet-optical-infrared spectral energy distribution of the low inclination novalike cataclysmic variable V592 Cassiopeiae, including new mid-infrared observations from 3.5-24...
Taking the Measure of the Universe : precision astrometry with SIM PlanetQuest (2008)
Unwin, Stephen C., Shao, Michael, Tanner, Angelle M., Allen, Ronald J., Beichman, Charles A., Boboltz, David, ...
Precision astrometry at microarcsecond accuracy has application to a wide range of astrophysical problems. This paper is a study of the science questions that can be addressed using an instrument...
Spitzer 24 μm time series observations of the eclipsing M dwarf binary GU Boötis (2008)
Von Braun, Kaspar, Van Belle, Gerard T., Ciardi, David R., Lopez-Morales, Mercedes, Hoard, D. W., Wachter, Stefanie
We present a set of Spitzer 24 μm MIPS time series observations of the M dwarf eclipsing binary star GU Boötis. Our data cover three secondary eclipses of the system: two consecutive events and an...
Taking the measure of the universe: precision astrometry with SIM PlanetQuest (2008)
Unwin, Stephen C., Shao, Michael, Tanner, Angelle M., Allen, Ronald J., Beichman, Charles A., Boboltz, David, ...
Precision astrometry at microarcsecond accuracy has applications for a wide range of astrophysical problems. This paper is a study of the science questions that can be addressed using an instrument...
Spitzer 24-micron Time-Series Observations of the Eclipsing M-dwarf Binary GU Bootis (2007)
Von Braun, Kaspar, Van Belle, Gerard T., Ciardi, David R., Lopez-Morales, Mercedes, Hoard, D. W., Wachter, Stefanie
We present a set of {\it Spitzer} 24$\mu$m MIPS time series observations of the M-dwarf eclipsing binary star GU Bo\"otis. Our data cover three secondary eclipses of the system: two consecutive...
Hoard, D. W., Howell, Steve B., Brinkworth, Carolyn S., Ciardi, David R., Wachter, Stefanie
We present the first mid-infrared (5.5-14.5 μm) spectrum of a highly magnetic cataclysmic variable, EF Eridani, obtained with the Infrared Spectrograph (IRS) on the Spitzer Space Telescope. The...
Observational Window Functions in Planet Transit Searches (2007)
Von Braun, Kaspar, Ciardi, David R.
Window functions describe, as a function of orbital period, the probability that an existing planetary transit is detectable in one's data for a given observing strategy. We show the dependence of...
Taking the Measure of the Universe: Precision Astrometry with SIM PlanetQuest (2007)
Unwin, Stephen C., Shao, Michael, Tanner, Angelle M., Allen, Ronald J., Beichman, Charles A., Boboltz, David, ...
Precision astrometry at microarcsecond accuracy has application to a wide range of astrophysical problems. This paper is a study of the science questions that can be addressed using an instrument...
Hoard, D. W., Howell, Steve B., Brinkworth, Carolyn S., Ciardi, David R., Wachter, Stefanie
We present the first mid-infrared (5.5-14.5 micron) spectrum of a highly magnetic cataclysmic variable, EF Eridani, obtained with the Infrared Spectrograph on the Spitzer Space Telescope. The...
Star Formation in the Bok Globule CB54 (2007)
Ciardi, David R., Martín, Cynthia Gómez
We present mid-infrared (10.4, 11.7, and 18.3 μm) imaging intended to locate and characterize the suspected protostellar components within the Bok globule CB54. We detect and confirm the...
The Angular Diameter of λ Boötis (2007)
Ciardi, David R., Van Belle, Gerard T., Boden, Andrew F., Brummelaar, T. Ten, McAlister, H. A., ...
Using the CHARA Array and the Palomar Testbed Interferometer, the chemically peculiar star λ Boötis has been spatially resolved. We have measured the limb darkened angular diameter to be θ_(LD) =...
Brinkworth, C. S., Hoard, D. W., Wachter, S., Howell, S. B., Ciardi, David R., Szkody, P., ...
We present Spitzer photometry of six short-period polars, EF Eri, V347 Pav, VV Pup, V834 Cen, GG Leo, and MR Ser. We have combined the Spitzer IRAC (3.6-8.0 μm) data with the 2MASS JHK_s photometry...
Star Formation in the Bok Globule CB54 (2007)
Ciardi, David R., Martin, Cynthia Gomez
We present mid-infrared (10.4 \micron, 11.7 \micron, and 18.3 \micron) imaging intended to locate and characterize the suspected protostellar components within the Bok globule CB54. We detect and...
Measurement of the Surface Gravity of $\eta$ Boo (2007)
Van Belle, Gerard T., Ciardi, David R., Boden, Andrew F.
Direct angular size measurements of the G0IV subgiant $\eta$ Boo from the Palomar Testbed Interferometer are presented, with limb-darkened angular size of $\theta_{LD}= 2.1894^{+0.0055}_{-0.0140} $...
The Angular Diameter of $\lambda$ Bo\"{o}tis} (2006)
Ciardi, David R., Van Belle, Gerard T., Boden, Andrew F., Brummelaar, T. Ten, McAlister, H. A., Bagnuolo, W. G., ...
Using the CHARA Array and the Palomar Testbed Interferometer, the chemically peculiar star $\lambda$ Bo\"{o}tis has been spatially resolved. We have measured the limb darkened angular diameter to be...
Ciardi, David R., Wachter, Stefanie, Hoard, D. W., Howell, Steve B., Van Belle, Gerard T.
We present four MIPS (24 \micron) and two IRAC (3.6, 4.5, 5.8, and 8.0 \micron) Spitzer observations of the newly discovered Tremendous Outburst Amplitude Dwarf nova (TOAD) Var Her 04 during decline...
Howell, Steve B., Brinkworth, Carolyn, Hoard, D. W., Wachter, Stefanie, Harrison, Thomas, Thomas, Howard Chun Beth, ...
We present the first observations of magnetic cataclysmic variables with the Spitzer Space Telescope. We used the Infrared Array Camera to obtain photometry of the polars EF Eri, GG Leo, V347 Pav,...
Comparison of wavelength dependent giant star angular diameters with models (2006)
Van Belle, Gerard, Ciardi, David R., Hauschildt, Peter, Scholz, Michael
We present angular size measurements obtained with the Palomar testbed Interferometer. Our sample includes 82 giant stars, with spectral types between B7 and M7. These objects represent the well...
Mid-Infrared Imaging of the Protostellar Binary L1448N--IRS3(A,B) (2002)
Ciardi, David R., Williams, Jonathan P., Telesco, Charles M., Fisher, R. Scott, Packham, Chris, Pina, Robert, ...
Mid-infrared (10-25 \micron) imaging of the protostellar binary system L1448N-IRS3(A,B) is presented. Only one source, IRS3(A), was detected at mid-infrared wavelengths -- all of the mid-infrared...
Altair's Oblateness and Rotation Velocity (2001)
Van Belle, Gerard T., Ciardi, David R., Thompson, Robert R., Akeson, Rachel L., Lada, Elizabeth A.
We present infrared interferometric angular size measurements for the A7IV-V star Altair which indicate a non-circular projected disk brightness distribution. Given the known rapid rotation of this...
On the Near-Infrared Size of Vega (2001)
Ciardi, David R., Van Belle, Gerard T., Akeson, Rachel L., Thompson, Robert R., Lada, Elizabeth A., Howell, Steve B.
Near-infrared (2.2 um) long baseline interferometric observations of Vega are presented. The stellar disk of the star has been resolved, and the data have been fitted with a limb darkened stellar...
Howell, Steve B., Ciardi, David R.
Infrared spectroscopic observations of LL Andromedae and EF Eridani are presented. Our K band spectrum of LL Andromedae reveals the presence of methane absorption in the secondary star indicating an...
Ciardi, David R. (David Robert)
Thesis (Ph. D.)--University of Wyoming, 1997.