Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Hall, Donald N. B."'
We present measurements of the evolutionary timescales of speckles around adaptive optics-corrected PSFs. We placed a SELEX SAPHIRA HgCdTe detector behind the SCExA0 instrument at Subaru Telescope. We analyzed the behavior of speckles at radial dista
Externí odkaz:
http://hdl.handle.net/10150/622013
http://arizona.openrepository.com/arizona/handle/10150/622013
http://arizona.openrepository.com/arizona/handle/10150/622013
Autor:
Wang, Jason J., Ginzburg, Sivan, Ren, Bin, Wallack, Nicole, Gao, Peter, Mawet, Dimitri, Bond, Charlotte Z., Cetre, Sylvain, Wizinowich, Peter, De Rosa, Robert J., Ruane, Garreth, Liu, Michael C., Absil, Olivier, Alvarez, Carlos, Baranec, Christoph, Choquet, Élodie, Chun, Mark, Defrère, Denis, Delorme, Jacques-Robert, Duchêne, Gaspard, Forsberg, Pontus, Ghez, Andrea, Guyon, Olivier, Hall, Donald N. B., Huby, Elsa, Jolivet, Aïssa, Jensen-Clem, Rebecca, Jovanovic, Nemanja, Karlsson, Mikael, Lilley, Scott, Matthews, Keith, Ménard, François, Meshkat, Tiffany, Millar-Blanchaer, Maxwell, Ngo, Henry, de Xivry, Gilles Orban, Pinte, Christophe, Ragland, Sam, Serabyn, Eugene, Catalán, Ernesto Vargas, Wang, Ji, Wetherell, Ed, Williams, Jonathan P., Ygouf, Marie, Zuckerman, Ben
We present $L$'-band imaging of the PDS 70 planetary system with Keck/NIRC2 using the new infrared pyramid wavefront sensor. We detected both PDS 70 b and c in our images, as well as the front rim of the circumstellar disk. After subtracting off a mo
Externí odkaz:
http://arxiv.org/abs/2004.09597
Publikováno v:
Journal of Astronomical Telescopes, Instruments, and Systems 4(2), 026001 (13 June 2018)
We discuss some of the unique details of the operation and behavior of Leonardo SAPHIRA detectors, particularly in relation to their usage for adaptive optics wavefront sensing. SAPHIRA detectors are 320$\times$256@24 $\mu$m pixel HgCdTe linear avala
Externí odkaz:
http://arxiv.org/abs/1805.08419
Autor:
Kim, Hwihyun, Whitmore, Bradley C., Chandar, Rupali, Saha, Abhijit, Kaleida, Catherine C., Mutchler, Max, Cohen, Seth H., Calzetti, Daniela, O'Connell, Robert W., Windhorst, Rogier A., Balick, Bruce, Bond, Howard E., Carollo, C. Marcella, Disney, Michael J., Dopita, Michael A., Frogel, Jay A., Hall, Donald N. B., Holtzman, Jon A., Kimble, Randy A., McCarthy, Patrick J., Paresce, Francesco, Silk, Joe I., Trauger, John T., Walker, Alistair R., Young, Erick T.
We present a multi-wavelength photometric study of ~15,000 resolved stars in the nearby spiral galaxy M83 (NGC5236, D=4.61Mpc) based on Hubble Space Telescope Wide Field Camera 3 observations using four filters: F336W, F438W, F555W, and F814W. We sel
Externí odkaz:
http://arxiv.org/abs/1204.6045
Autor:
De Marchi, Guido, Paresce, Francesco, Panagia, Nino, Beccari, Giacomo, Spezzi, Loredana, Sirianni, Marco, Andersen, Morten, Mutchler, Max, Balick, Bruce, Dopita, Michael A., Frogel, Jay A., Whitmore, Bradley C., Bond, Howard, Clazetti, Daniela, Carollo, C. Marcella, Disney, Michael J., Hall, Donald N. B., Holtzman, Jon A., Kimble, Randy A., McCarthy, Patrick J., O'Connell, Robert W., Saha, Abhijit, Silk, Joseph I., Trauger, John T., Walker, Alistair R., Windhorst, Rogier A., Young, Erick T.
Using observations obtained with the Wide Field Camera 3 (WFC3) on board the Hubble Space Telescope (HST), we have studied the properties of the stellar populations in the central regions of 30 Dor, in the Large Magellanic Cloud. The observations cle
Externí odkaz:
http://arxiv.org/abs/1106.2801
Autor:
Whitmore, Bradley C., Chandar, Rupali, Kim, Hwihyun, Kaleida, Catherine, Mutchler, Max, Calzetti, Daniela, Saha, Abhijit, O'Connell, Robert, Balick, Bruce, Bond, Howard E., Carollo, Marcella, Disney, Michael J., Dopita, Michael A., Frogel, Jay A., Hall, Donald N. B., Holtzman, Jon A., Kimble, Randy A., McCarthy, Patrick J., Paresce, Francesco, Silk, Joseph I., Trauger, John T., Walker, Alistair R., Windhorst, Rogier A., Young, Erick T.
Publikováno v:
2011ApJ...729...78W
We use new WFC3 observations of the nearby grand design spiral galaxy M83 to develop two independent methods for estimating the ages of young star clusters. The first method uses the physical extent and morphology of Halpha emission to estimate the a
Externí odkaz:
http://arxiv.org/abs/1103.4026
Autor:
Spezzi, Loredana, Beccari, Giacomo, De Marchi, Guido, Young, Erick T., Paresce, Francesco, Dopita, Michael A., Andersen, Morten, Panagia, Nino, Balick, Bruce, Bond, Howard E., Calzetti, Daniela, Carollo, C. Marcella, Disney, Michael J., Frogel, Jay A., Hall, Donald N. B., Holtzman, Jon A., Kimble, Randy A., McCarthy, Patrick J., O'Connell, Robert W., Saha, Abhijit, Silk, Joseph I., Trauger, John T., Walker, Alistair R., Whitmore, Bradley C., Windhorst, Rogier A.
We use near-infrared data obtained with the Wide Field Camera 3 (WFC3) on the Hubble Space Telescope to identify objects having the colors of brown dwarfs (BDs) in the field of the massive galactic cluster NGC 3603. These are identified through use o
Externí odkaz:
http://arxiv.org/abs/1101.4521
Autor:
Crockett, R. Mark, Kaviraj, Sugata, Silk, Joseph I., Whitmore, Bradley C., O'Connell, Robert W., Mutchler, Max, Balick, Bruce, Bond, Howard E., Calzetti, Daniela, Carollo, C. Marcella, Disney, Michael J., Dopita, Michael A., Frogel, Jay A., Hall, Donald N. B., Holtzman, Jon A., Kimble, Randy A., McCarthy, Patrick J., Paresce, Francesco, Saha, Abhijit, Trauger, John T., Walker, Alistair R., Windhorst, Rogier A., Young, Erick T., Jeong, Hyunjin, Yi, Sukyoung K.
Publikováno v:
R.M. Crockett et al., 2011, ApJ, 727, 115 (http://iopscience.iop.org/0004-637X/727/2/115/)
(Abridged) We present a spatially-resolved near-UV/optical study of NGC 4150, using the Wide Field Camera 3 (WFC3) on board the Hubble Space Telescope. Previous studies of this early-type galaxy (ETG) indicate that it has a large reservoir of molecul
Externí odkaz:
http://arxiv.org/abs/1011.5504
Autor:
Finkelstein, Steven L., Cohen, Seth H., Windhorst, Rogier A., Ryan, Russell E., Hathi, Nimish P., Finkelstein, Keely D., Anderson, Jay, Grogin, Norman A., Koekemoer, Anton M., Malhotra, Sangeeta, Mutchler, Max, Rhoads, James E., McCarthy, Patrick J., O'Connell, Robert W., Balick, Bruce, Bond, Howard E., Calzetti, Daniela, Disney, Michael J., Dopita, Michael A., Frogel, Jay A., Hall, Donald N. B., Holtzman, Jon A., Kimble, Randy A., Luppino, Gerard, Paresce, Francesco, Saha, Abhijit, Silk, Joseph I., Trauger, John T., Walker, Alistair R., Whitmore, Bradley C., Young, Erick T.
We present the highest redshift detections of resolved Lyman alpha emission, using Hubble Space Telescope/ACS F658N narrowband-imaging data taken in parallel with the Wide Field Camera 3 Early Release Science program in the GOODS CDF-S. We detect Lym
Externí odkaz:
http://arxiv.org/abs/1008.0634
Autor:
Beccari, Giacomo, Spezzi, Loredana, De Marchi, Guido, Paresce, Francesco, Young, Erick, Andersen, Morten, Panagia, Nino, Balick, Bruce, Bond, Howard, Calzetti, Daniela, Carollo, C. Marcella, Disney, Michael J., Dopita, Michael A., Frogel, Jay A., Hall, Donald N. B., Holtzman, Jon A., Kimble, Randy A., McCarthy, Patrick J., O'Connell, Robert W., Saha, Abhijit, Silk, Joseph I., Trauger, John T., Walker, Alistair R., Whitmore, Bradley C., Windhorst, Rogier A.
Early release science observations of the cluster NGC3603 with the WFC3 on the refurbished HST allow us to study its recent star formation history. Our analysis focuses on stars with Halpha excess emission, a robust indicator of their pre-main sequen
Externí odkaz:
http://arxiv.org/abs/1007.2795