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Autor:
Lucas, Miles, Norris, Barnaby, Guyon, Olivier, Bottom, Michael, Deo, Vincent, Vievard, Sébastian, Lozi, Julien, Ahn, Kyohoon, Ashcraft, Jaren, Currie, Thayne, Doelman, David, Kudo, Tomoyuki, Leboulleux, Lucie, Lilley, Lucinda, Millar-Blanchaer, Maxwell, Safonov, Boris, Tuthill, Peter, Uyama, Taichi, Walk, Aidan, Zhang, Manxuan
We present significant upgrades to the VAMPIRES instrument, a visible-light (600 nm to 800 nm) high-contrast imaging polarimeter integrated within SCExAO on the Subaru telescope. Key enhancements include new qCMOS detectors, coronagraphs, polarizatio
Externí odkaz:
http://arxiv.org/abs/2410.12199
Autor:
Wang, Z., Bannister, K. W., Gupta, V., Deng, X., Pilawa, M., Tuthill, J., Bunton, J. D., Flynn, C., Glowacki, M., Jaini, A., Lee, Y. W. J., Lenc, E., Lucero, J., Paek, A., Radhakrishnan, R., Thyagarajan, N., Uttarkar, P., Wang, Y., Bhat, N. D. R., James, C. W., Moss, V. A., Murphy, Tara, Reynolds, J. E., Shannon, R. M., Spitler, L. G., Tzioumis, A., Caleb, M., Deller, A. T., Gordon, A. C., Marnoch, L., Ryder, S. D., Simha, S., Anderson, C. S., Ball, L., Brodrick, D., Cooray, F. R., Gupta, N., Hayman, D. B., Ng, A., Pearce, S. E., Phillips, C., Voronkov, M. A., Westmeier, T.
We present the first results from a new backend on the Australian Square Kilometre Array Pathfinder, the Commensal Realtime ASKAP Fast Transient COherent (CRACO) upgrade. CRACO records millisecond time resolution visibility data, and searches for dis
Externí odkaz:
http://arxiv.org/abs/2409.10316
Autor:
Deo, Vincent, Vievard, Sebastien, Lallement, Manon, Lucas, Miles, Huby, Elsa, Ahn, Kyohoon, Guyon, Olivier, Lozi, Julien, Kenchington-Goldsmith, Harry-Dean, Lacour, Sylvestre, Martin, Guillermo, Norris, Barnaby, Perrin, Guy, Singh, Garima, Tuthill, Peter
The petaling effect, induced by pupil fragmentation from the telescope spider, drastically affects the performance of high contrast instruments by inducing core splitting on the PSF. Differential piston/tip/tilt aberrations within each optically sepa
Externí odkaz:
http://arxiv.org/abs/2409.05246
Autor:
Norris, Barnaby, Gross, Simon, Leon-Saval, Sergio G., Betters, Christopher H., Bryant, Julia, Yu, Qingshan, Wang, Adeline Haobing, Douglass, Glen, Arcadi, Elizabeth, Sanny, Ahmed, Withford, Michael, Tuthill, Peter, Bland-Hawthorn, Joss
Publikováno v:
Appl. Opt. 63, 6393-6412 (2024)
Astrophotonics represents a cutting-edge approach in observational astronomy. This paper explores the significant advancements and potential applications of astrophotonics, highlighting how photonic technologies stand to revolutionise astronomical in
Externí odkaz:
http://arxiv.org/abs/2408.15541
Autor:
Spalding, Eckhart, Arcadi, Elizabeth, Douglass, Glen, Gross, Simon, Guyon, Olivier, Martinod, Marc-Antoine, Norris, Barnaby, Rossini-Bryson, Stephanie, Taras, Adam, Tuthill, Peter, Ahn, Kyohoon, Deo, Vincent, Morsy, Mona El, Lozi, Julien, Vievard, Sebastien, Withford, Michael
GLINT is a nulling interferometer downstream of the SCExAO extreme-adaptive-optics system at the Subaru Telescope (Hawaii, USA), and is a pathfinder instrument for high-contrast imaging of circumstellar environments with photonic technologies. GLINT
Externí odkaz:
http://arxiv.org/abs/2407.17741
Autor:
Laugier, Romain, Defrère, Denis, Ireland, Michael, Garreau, Germain, Absil, Olivier, Matter, Alexis, Petrov, Romain, Berio, Philippe, Tuthill, Peter, Martinod, Marc-Antoine, Labadie, Lucas
To leverage the angular resolution of interferometry at high contrast, one must employ specialized beam-combiners called interferometric nullers. Nullers discard part of the astrophysical information to optimize the recording of light present in the
Externí odkaz:
http://arxiv.org/abs/2407.17177
Autor:
Martinod, Marc-Antoine, Defrère, Denis, Ireland, Michael J., Kraus, Stefan, Martinache, Frantz, Tuthill, Peter G., Allouche, Fatmé, Bouzerand, Emilie, Bryant, Julia, Carter, Josh, Chhabra, Sorabh, Courtney-Barrer, Benjamin, Crous, Fred, Cvetojevic, Nick, Dandumont, Colin, Ertel, Steve, Gardner, Tyler, Garreau, Germain, Glauser, Adrian M., Haubois, Xavier, Labadie, Lucas, Lagarde, Stéphane, Lancaster, Daniel, Laugier, Romain, Mazzoli, Alexandra, Meilland, Anthony, Missiaen, Kwinten, Morel, Sébastien, Mortimer, Daniel J., Norris, Barnaby, Paul, Jyotirmay, Raskin, Gert, Robbe-Dubois, Sylvie, Robertson, J. Gordon, Sanny, Ahmed, Schuhler, Nicolas, Snaith, Owain, Taras, Adam
ESO's Very Large Telescope Interferometer has a history of record-breaking discoveries in astrophysics and significant advances in instrumentation. The next leap forward is its new visitor instrument, called Asgard. It comprises four natively collabo
Externí odkaz:
http://arxiv.org/abs/2407.08431
Autor:
Taras, Adam K., Robertson, J. Gordon, Carter, Josh, Crous, Fred, Courtney-Barrer, Benjamin, McGinness, Grace, Ireland, Michael, Tuthill, Peter
The Asgard instrument suite proposed for the ESO's Very Large Telescope Interferometer (VLTI) brings with it a new generation of instruments for spectroscopy and nulling. Asgard will enable investigations such as measurement of direct stellar masses
Externí odkaz:
http://arxiv.org/abs/2407.04187
Autor:
Anugu, Narsireddy, brummelaar, Theo A. ten, Lanthermann, Cyprien, Tuthill, Peter G., Ligon III, Edgar R., Schaefer, Gail H., Gies, Douglas R., Piroscia, Grace, Taras, Adam, van Belle, Gerard T., Kishimoto, Makoto, Martinod, Marc-Antoine
The newly installed Silmaril beam combiner at the CHARA array is designed to observe previously inaccessible faint targets, including Active Galactic Nuclei and T-Tauri Young Stellar Objects. Silmaril leverages cutting-edge optical design, low readou
Externí odkaz:
http://arxiv.org/abs/2406.17886