Zobrazeno 1 - 10
of 3 401
pro vyhledávání: '"Perrin M."'
Autor:
Buralli, B., N'Diaye, M., Pourcelot, R., Carbillet, M., Por, E. H., Laginja, I., Canas, L., Steiger, S., Petrone, P., Nguyen, M. M., Nickson, B., Redmond, S. F., Sahoo, A., Pueyo, L., Perrin, M. D., Soummer, R.
We study a mid-order wavefront sensor (MOWFS) to address fine cophasing errors in exoplanet imaging with future large segmented aperture space telescopes. Observing Earth analogs around Sun-like stars requires contrasts down to $10^{-10}$ in visible
Externí odkaz:
http://arxiv.org/abs/2409.03411
Autor:
Villenave, M., Stapelfeldt, K. R., Duchene, G., Menard, F., Wolff, S. G., Perrin, M. D., Pinte, C., Tazaki, R., Padgett, D.
We present JWST imaging from 2$\mu$m to 21$\mu$m of the edge-on protoplanetary disk around the embedded young star IRAS04302+2247. The structure of the source shows two reflection nebulae separated by a dark lane. The source extent is dominated by th
Externí odkaz:
http://arxiv.org/abs/2311.07668
Autor:
Duchene, G., Menard, F., Stapelfeldt, K., Villenave, M., Wolff, S. G., Perrin, M. D., Pinte, C., Tazaki, R., Padgett, D. L.
Scattered light imaging of protoplanetary disks provides key insights on the geometry and dust properties in the disk surface. Here we present JWST 2--21\,$\mu$m images of a 1000\,au-radius edge-on protoplanetary disk surrounding an 0.4\,$M_\odot$ yo
Externí odkaz:
http://arxiv.org/abs/2309.07040
Autor:
Libralato, M., Bellini, A., van der Marel, R. P., Anderson, J., Sohn, S. T., Watkins, L. L., Alderson, L., Allen, N., Clampin, M., Glidden, A., Goyal, J., Hoch, K., Huang, J., Kammerer, J., Lewis, N. K., Lin, Z., Long, D., Louie, D., MacDonald, R. J., Mountain, M., Peña-Guerrero, M., Perrin, M. D., Pueyo, L., Rebollido, I., Rickman, E., Seager, S., Stevenson, K. B., Valenti, J. A., Valentine, D., Wakeford, H. R.
We develop and disseminate effective point-spread functions and geometric-distortion solutions for high-precision astrometry and photometry with the JWST NIRISS instrument. We correct field dependencies and detector effects, and assess the quality an
Externí odkaz:
http://arxiv.org/abs/2303.00009
Autor:
Pourcelot, R., Por, E. H., N'Diaye, M., Benard, H., Brady, G., Canas, L., Carbillet, M., Dohlen, K., Laginja, I., Lugten, J., Noss, J., Perrin, M. D., Petrone, P., Pueyo, L., Redmond, S. F., Sahoo, A., Vigan, A., Will, S. D., Soummer, R.
Publikováno v:
A&A 672, A73 (2023)
Wavefront sensing and control (WFSC) will play a key role in improving the stability of future large segmented space telescopes while relaxing the thermo-mechanical constraints on the observatory structure. Coupled with a coronagraph to reject the li
Externí odkaz:
http://arxiv.org/abs/2301.03242
Publikováno v:
Oil & Gas Science and Technology, Vol 51, Iss 1, Pp 43-47 (2006)
Externí odkaz:
https://doaj.org/article/5c3b52afc794406394e0d94b307063be
Autor:
Pourcelot, R., N'Diaye, M., Por, E. H., Laginja, I., Carbillet, M., Benard, H., Brady, G., Canas, L., Dohlen, K., Fowler, J., Lai, O., Maclay, M., McChesney, E., Noss, J., Perrin, M. D., Petrone, P., Pueyo, L., Redmond, S. F., Sahoo, A., Vigan, A., Will, S. D., Soummer, R.
Publikováno v:
A&A 663, A49 (2022)
Combining large segmented space telescopes, coronagraphy and wavefront control methods is a promising solution to produce a dark hole (DH) region in the coronagraphic image of an observed star and study planetary companions. The thermal and mechanica
Externí odkaz:
http://arxiv.org/abs/2204.06442
Autor:
Li, T., Ismail, A., Bailly, Y., Girardot, L., Perrin, M., Vives, S., Roy, J.C., Ramel, D., Meunier, A., Bonnet, D.
Publikováno v:
In Experimental Thermal and Fluid Science January 2025 160
Publikováno v:
Zeitschrift für Kristallographie - New Crystal Structures, Vol 217, Iss 1, Pp 295-297 (2002)
Externí odkaz:
https://doaj.org/article/38228407eea04baa8db65c2bd3dc3fb0
Publikováno v:
Zeitschrift für Kristallographie - New Crystal Structures, Vol 215, Iss 4, Pp 597-599 (2000)
Externí odkaz:
https://doaj.org/article/a3e976d2c3c24e67aed3a5c19553713f