Zobrazeno 1 - 10
of 248
pro vyhledávání: '"Pel, J."'
Autor:
Wells, Martyn, Pel, J. -W., Glasse, Alistair, Wright, G. S., Aitink-Kroes, Gabby, Azzollini, Ruyman, Beard, Steven, Brandl, B. R., Gallie, Angus, Geers, V. C., Glauser, A. M., Hastings, Peter, Henning, Th., Jager, Rieks, Justtanont, K., Kruizinga, Bob, Lahuis, Fred, Lee, David, Martinez-Delgado, I., Martinez-Galarza, J. R., Meijers, M., Morrison, Jane E., Mueller, Friedrich, Nakos, Thodori, O'Sullivan, Brian, Oudenhuysen, Ad, Parr-Burman, P., Pauwels, Evert, Rohloff, R. -R., Schmalzl, Eva, Sykes, Jon, Thelen, M. P., van Dishoeck, E. F., Vandenbussche, Bart, Venema, Lars B., Visser, Huib, Waters, L. B. F. M., Wright, David
Publikováno v:
PASP, 2015, 127, 646
We describe the design and performance of the Medium Resolution Spectrometer (MRS) for the JWST-MIRI instrument. The MRS incorporates four coaxial spectral channels in a compact opto-mechanical layout that generates spectral images over fields of vie
Externí odkaz:
http://arxiv.org/abs/1508.03070
Autor:
Wright, G. S., Wright, David, Goodson, G. B., Rieke, G. H., Aitink-Kroes, Gabby, Amiaux, J., Aricha-Yanguas, Ana, Azzolini, Ruyman, Banks, Kimberly, Barrado-Navascues, D., Belenguer-Davila, T., Bloemmart, J. A. D. L., Bouchet, Patrice, Brandl, B. R., Colina, L., Detre, Ors, Diaz-Catala, Eva, Eccleston, Paul, Friedman, Scott D., Garcia-Marin, Macarena, Guedel, Manuel, Glasse, Alistair, Glauser, Adrian M., Greene, T. P., Groezinger, Uli, Grundy, Tim, Hastings, Peter, Henning, Th., Hofferbert, Ralph, Hunter, Faye, Jessen, N. C., Justtanont, K., Karnik, Avinash R., Khorrami, Mori A., Krause, Oliver, Labiano, Alvaro, Lagage, P. -O., Langer, Ulrich, Lemke, Dietrich, Lim, Tanya, Lorenzo-Alvarez, Jose, Mazy, Emmanuel, McGowan, Norman, Meixner, M. E., Morris, Nigel, Morrison, Jane E., Mueller, Friedrich, Norgaard-Nielson, H. -U., Olofsson, Goeran, O'Sullivan, Brian, Pel, J. -W., Penanen, Konstantin, Petach, M. B., Pye, J. P., Ray, T. P., Renotte, Etienne, Renouf, Ian, Ressler, M. E., Samara-Ratna, Piyal, Scheithauer, Silvia, Schneider, Analyn, Shaughnessy, Bryan, Stevenson, Tim, Sukhatme, Kalyani, Swinyard, Bruce, Sykes, Jon, Thatcher, John, Tikkanen, Tuomo, van Dishoeck, E. F., Waelkens, C., Walker, Helen, Wells, Martyn, Zhender, Alex
Publikováno v:
PASP, 127, 595, 2015
The Mid-InfraRed Instrument (MIRI) on the James Webb Space Telescope (JWST) provides measurements over the wavelength range 5 to 28.5 microns. MIRI has, within a single 'package', four key scientific functions: photometric imaging, coronagraphy, sing
Externí odkaz:
http://arxiv.org/abs/1508.02333
We present a new derivation of the CORS Baade-Wesselink method in the Walraven photometric system. We solved the complete Baade-Wesselink equation by calibrating the surface brightness function with a recent grid of atmosphere models. The new approac
Externí odkaz:
http://arxiv.org/abs/1012.4376
Autor:
Pedicelli, S., Lemasle, B., Groenewegen, M., Romaniello, M., Bono, G., Laney, C. D., Francois, P., Buonanno, R., Caputo, F., Lub, J., Pel, J. W., Primas, F., Pritchard, J.
We provided accurate estimates of distances, radii and iron abundances for four metal-rich Cepheids, namely V340 Ara, UZ Sct, AV Sgr and VY Sgr. The main aim of this investigation is to constrain their pulsation properties and their location across t
Externí odkaz:
http://arxiv.org/abs/1003.3854
Publikováno v:
Astron.Astrophys.511:A64,2010
We investigate the validity of the quasar - radio galaxy unification scenario and detect dust tori within radio galaxies of various types. Using VISIR on the VLT, we acquired sub-arcsecond (~0.40") resolution N-band images, at a wavelength of 11.85 m
Externí odkaz:
http://arxiv.org/abs/0911.3734
Autor:
Pedicelli, S., Bono, G., Lemasle, B., Francois, P., Groenewegen, M., Lub, J., Pel, J. W., Laney, D., Piersimoni, A., Romaniello, M., Buonanno, R., Caputo, F., Cassisi, S., Castelli, F., Leurini, S., Pietrinferni, A., Primas, F., Pritchard, J.
Aims: The iron abundance gradient in the Galactic stellar disk provides fundamental constraints on the chemical evolution of this important Galaxy component. However the spread around the mean slope is, at fixed Galactocentric distance, larger than e
Externí odkaz:
http://arxiv.org/abs/0906.3140
Autor:
Verhoelst, T., Waters, L. B. F. M., Verhoeff, A., Dijkstra, C., van Winckel, H., Pel, J. W., Peletier, R. F.
Either by collimating a fast stellar wind or by driving a jet via accretion in the central system, dusty torii or stable disks may be crucial ingredients for the shaping of PNe. We study the dust distribution in the very young Proto-Planetary Nebule
Externí odkaz:
http://arxiv.org/abs/0906.0901
Autor:
Pedicelli, S., Lub, J., Pel, J. W., Lemasle, B., Bono, G., Francois, P., Laney, D., Piersimoni, A., Primas, F., Romaniello, M., Buonanno, R., Caputo, F., Cassisi, S., Castelli, F., Pietrinferni, A., Pritchard, J.
We present new empirical and theoretical calibrations of two photometric metallicity indices based on Walraven photometry. The empirical calibration relies on a sample of 48 Cepheids for which iron abundances based on high resolution spectra are avai
Externí odkaz:
http://arxiv.org/abs/0712.3006
Autor:
Geers, V. C., Pontoppidan, K. M., van Dishoeck, E. F., Dullemond, C. P., Augereau, J. -C., Merín, B., Oliveira, I., Pel, J. W.
We present spatially resolved mid-infrared images of the disk surrounding the young star IRS 48 in the Ophiuchus cloud complex. The disk exhibits a ring-like structure at 18.7 micron, and is dominated by very strong emission from polycyclic aromatic
Externí odkaz:
http://arxiv.org/abs/0705.2969
Autor:
Gaudi, B. S., Albrow, M. D., An, J., Beaulieu, J. -P., Caldwell, J. A. R., DePoy, D. L., Dominik, M., Gould, A., Greenhill, J., Hill, K., Kane, S., Martin, R., Menzies, J., Naber, R. M., Pel, J. -W., Pogge, R. W., Pollard, K. R., Sackett, P. D., Sahu, K. C., Vermaak, P., Vreeswijk, P. M., Watson, R., Williams, A., Collaboration, The PLANET
We analyze five years of PLANET photometry of microlensing events toward the Galactic bulge to search for the short-duration deviations from single lens light curves that are indicative of the presence of planetary companions to the primary microlens
Externí odkaz:
http://arxiv.org/abs/astro-ph/0104100