Search Results - "DANCHI, W"

Prebiotic Chemistry and Atmospheric Warming of Early Earth by an Active Young Sun by Airapetian, V. S., Glocer, A., Gronoff, G., Hebrard, E., Danchi, W.

“…Nitrogen is a critical ingredient of complex biological molecules. Molecular nitrogen, however, which was outgassed Into the Earth's early atmosphere, is…”
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NULLING DATA REDUCTION AND ON-SKY PERFORMANCE OF THE LARGE BINOCULAR TELESCOPE INTERFEROMETER by Defrère, D., Hinz, P. M., Mennesson, B., Hoffmann, W. F., Millan-Gabet, R., Skemer, A. J., Bailey, V., Danchi, W. C., Downey, E. C., Durney, O., Grenz, P., Hill, J. M., McMahon, T. J., Montoya, M., Spalding, E., Vaz, A., Absil, O., Arbo, P., Bailey, H., Brusa, G., Bryden, G., Esposito, S., Gaspar, A., Haniff, C. A., Kennedy, G. M., Leisenring, J. M., Marion, L., Nowak, M., Pinna, E., Powell, K., Puglisi, A., Rieke, G., Roberge, A., Serabyn, E., Sosa, R., Stapeldfeldt, K., Su, K., Weinberger, A. J., Wyatt, M. C.

“…ABSTRACT The Large Binocular Telescope Interferometer (LBTI) is a versatile instrument designed for high angular resolution and high-contrast infrared imaging…”
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A Dusty Veil Shading Betelgeuse During Its Great Dimming by Montargès, M, Cannon, E, Lagadec, E, Koter, A de, Kervella, P, Sanchez-Bermudez, J, Paladini, C, Cantalloube, F, Decin, L, Scicluna, P, Kravchenko, K, Dupree, A K, Ridgway, S, Wittkowski, M, Anugu, N, Norris, R, Rau, G, Perrin, G, Chiavassa, A, Kraus, S, Monnier, J D, Millour, F, Bouquin, J-B Le, Haubois, X, Lopez, B, Stee, P, Danchi, W

“…Red supergiants are the most common final evolutionary stage of stars that have initial masses between 8 and 35 times that of the Sun. During this stage, which…”
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CONSTRAINING THE EXOZODIACAL LUMINOSITY FUNCTION OF MAIN-SEQUENCE STARS: COMPLETE RESULTS FROM THE KECK NULLER MID-INFRARED SURVEYS by Mennesson, B, Millan-Gabet, R, Serabyn, E, Colavita, M M, Absil, O, Bryden, G, Wyatt, M, Danchi, W, Defrere, D, Dore, O

“…Forty-seven nearby main-sequence stars were surveyed with the Keck Interferometer mid-infrared Nulling instrument (KIN) between 2008 and 2011, searching for…”
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Space-Based Infrared Interferometry to Study Exoplanetary Atmospheres by Defrère, D., Léger, A., Absil, O., Beichman, C., Biller, B., Danchi, W. C., Ergenzinger, K., Eiroa, C., Ertel, S., Fridlund, M., Muñoz, A. García, Gillon, M., Glasse, A., Godolt, M., Grenfell, J. L., Kraus, S., Labadie, L., Lacour, S., Liseau, R., Martin, G., Mennesson, B., Micela, G., Minardi, S., Quanz, S. P., Rauer, H., Rinehart, S., Santos, N. C., Selsis, F., Surdej, J., Tian, F., Villaver, E., Wheatley, P. J., Wyatt, M.

“…The quest for other habitable worlds and the search for life among them are major goals of modern astronomy. One way to make progress towards these goals is to…”
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The Path Towards High-Contrast Imaging with the VLTI: The Hi-5 Project by Defrere, D., Absil, O., Berger, J.-P., Boulet, T., Danchi, W. C., Ertel, S., Gallenne, A., Henault, F., Hinz, P., Huby, E., Ireland, M., Kraus, S., Labadie, L., Le Bouquin, J.-B., Martin, G., Matter, A., Merand, A., Mennesson, B., Minardi, S., Monnier, J. D., Norris, B., Orban de Xivry, G., Pedretti, E., Pott, J.-U., Reggiani, M., Serabyn, E., Surdej, J., Tristram, K. R. W., Woillez, J.

“…The development of high-contrast capabilities has long been recognized as one of the top priorities for the VLTI (Very Large Telescope Interferometer). As of…”
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GASPS-A Herschel Survey of Gas and Dust in Protoplanetary Disks: Summary and Initial Statistics by Dent, W. R. F., Thi, W. F., Kamp, I., Williams, J. P., Menard, F., Andrews, S., Ardila, D., Aresu, G., Augereau, J.-C., Barrado y Navascues, D., Brittain, S., Carmona, A., Ciardi, D., Danchi, W., Donaldson, J., Duchene, G., Eiroa, C., Fedele, D., Grady, C., de Gregorio-Molsalvo, I., Howard, C., Huélamo, N., Krivov, A., Lebreton, J., Liseau, R., Martin-Zaidi, C., Mathews, G., Meeus, G., Mendigutía, I., Montesinos, B., Morales-Calderon, M., Mora, A., Nomura, H., Pantin, E., Pascucci, I., Phillips, N., Pinte, C., Podio, L., Ramsay, S. K., Riaz, B., Riviere-Marichalar, P., Roberge, A., Sandell, G., Solano, E., Tilling, I., Torrelles, J. M., Vandenbusche, B., Vicente, S., White, G. J., Woitke, P.

“…ABSTRACT We describe a large-scale far-infrared line and continuum survey of protoplanetary disk through to young debris disk systems carried out using the ACS…”
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Exozodiacal Dust Levels for Nearby Main-sequence Stars: A Survey with the Keck Interferometer Nuller by Millan-Gabet, R, Serabyn, E, Mennesson, B, Traub, W. A, Barry, R. K, Danchi, W. C, Kuchner, M, Stark, C. C, Ragland, S, Hrynevych, M, Woillez, J, Stapelfeldt, K, Bryden, G, Colavita, M. M, Booth, A. J

“…The Keck Interferometer Nuller (KIN) was used to survey 25 nearby main-sequence stars in the mid-infrared, in order to assess the prevalence of warm…”
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The Keck Aperture Masking Experiment: dust-enshrouded red giants by Blasius, T. D., Monnier, J. D., Tuthill, P. G., Danchi, W. C., Anderson, M.

“…Abstract While the importance of dusty asymptotic giant branch (AGB) stars to galactic chemical enrichment is widely recognized, a sophisticated understanding…”
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High-Resolution Imaging of Dust Shells by Using Keck Aperture Masking and the IOTA Interferometer by Monnier, J. D, Millan-Gabet, R, Tuthill, P. G, Traub, W. A, Carleton, N. P, Coudé du Foresto, V, Danchi, W. C, Lacasse, M. G, Morel, S, Perrin, G, Porro, I. L, Schloerb, F. P, Townes, C. H

“…We present first results of an experiment to combine data from Keck aperture masking and the Infrared-Optical Telescope Array to image the circumstellar…”
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The Keck Aperture Masking Experiment: Multiwavelength Observations of Six Mira Variables by Woodruff, H. C, Tuthill, P. G, Monnier, J. D, Ireland, M. J, Bedding, T. R, Lacour, S, Danchi, W. C, Scholz, M

“…The angular diameters of six oxygen-rich Mira-type long-period variables have been measured at various NIR wavelengths using the aperture-masking technique in…”
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The Near-Infrared Size-Luminosity Relations for Herbig Ae/Be Disks by Monnier, J. D, Millan-Gabet, R, Billmeier, R, Akeson, R. L, Wallace, D, Berger, J.-P, Calvet, N, D’Alessio, P, Danchi, W. C, Hartmann, L, Hillenbrand, L. A, Kuchner, M, Rajagopal, J, Traub, W. A, Tuthill, P. G, Boden, A, Booth, A, Colavita, M, Gathright, J, Hrynevych, M, Le Mignant, D, Ligon, R, Neyman, C, Swain, M, Thompson, R, Vasisht, G, Wizinowich, P, Beichman, C, Beletic, J, Creech-Eakman, M, Koresko, C, Sargent, A, Shao, M, van Belle, G

“…We report the results of a sensitive K-band survey of Herbig Ae/Be disk sizes using the 85 m baseline Keck Interferometer. Targets were chosen to span the…”
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FIRST KECK NULLING OBSERVATIONS OF A YOUNG STELLAR OBJECT: PROBING THE CIRCUMSTELLAR ENVIRONMENT OF THE HERBIG Ae STAR MWC 325 by RAGLAND, S, OHNAKA, K, TRAUB, W. A, HILLENBRAND, L, RIDGWAY, S. T, COLAVITA, M. M, AKESON, R. L, COTTON, W, DANCHI, W. C, HRYNEVICH, M, MILLAN-GABET, R

“…We present the first N-band nulling plus K- and L-band V super(2) observations of a young stellar object, MWC 325, taken with the 85 m baseline Keck…”
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The Keck Aperture-masking Experiment: Near-Infrared Sizes of Dusty Wolf-Rayet Stars by Monnier, J. D, Tuthill, P. G, Danchi, W. C, Murphy, N, Harries, T. J

“…We report the results of a high angular resolution near-infrared survey of dusty Wolf-Rayet stars using the Keck I Telescope, including new multiwavelength…”
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POLARIZED EMISSION FROM SiO MASERS IN IK Tauri by COTTON, W. D, RAGLAND, S, DANCHI, W. C

“…We present high spatial and frequency resolution images of the SiO masers in Stokes I, Q, U, and V around the asymptotic giant branch star IK Tau and describe…”
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Discovery of a Circumbinary Disk around Herbig Ae/Be System V892 Tauri by Monnier, J. D, Tannirkulam, A, Tuthill, P. G, Ireland, M, Cohen, R, Danchi, W. C, Baron, F

“…We report the discovery of a circumbinary disk around the Herbig Ae/Be system V892 Tau. Our detailed mid-infrared images were made using segment-tilting…”
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First Surface-resolved Results with the Infrared Optical Telescope Array Imaging Interferometer: Detection of Asymmetries in Asymptotic Giant Branch Stars by Ragland, S, Traub, W. A, Berger, J.-P, Danchi, W. C, Monnier, J. D, Willson, L. A, Carleton, N. P, Lacasse, M. G, Millan-Gabet, R, Pedretti, E, Schloerb, F. P, Cotton, W. D, Townes, C. H, Brewer, M, Haguenauer, P, Kern, P, Labeye, P, Malbet, F, Malin, D, Pearlman, M, Perraut, K, Souccar, K, Wallace, G

“…We have measured nonzero closure phases for about 29% of our sample of 56 nearby asymptotic giant branch (AGB) stars, using the three-telescope Infrared…”
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The Keck Aperture Masking Experiment: Spectro-Interferometry of Three Mira Variables from 1.1 to 3.8 μm by Woodruff, H. C, Ireland, M. J, Tuthill, P. G, Monnier, J. D, Bedding, T. R, Danchi, W. C, Scholz, M, Townes, C. H, Wood, P. R

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Parasitic Interference in Nulling Interferometry by Matter, A., Defrere, D., Danchi, W. C., Lopez, B., Absil, O.

“…Nulling interferometry aims to detect faint objects close to bright stars. Its principle is to produce a destructive interference along the line of sight so…”
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A PRECISE PHYSICAL ORBIT FOR THE M-DWARF BINARY GLIESE 268 by BARRY, R. K, DEMORY, B.-O, DELFOSSE, X, MAYOR, M, PERRIER, C, UDRY, S, SEGRANSAN, D, FORVEILLE, T, DANCHI, W. C, DI FOLCO, E, QUELOZ, D, SPOONER, H. R, TORRES, G, TRAUB, W. A

“…We report high-precision interferometric and radial velocity (RV) observations of the M-dwarf binary G1 268. Combining measurements conducted using the IOTA…”
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