THE K2-ESPRINT PROJECT III: A CLOSE-IN SUPER-EARTH AROUND A METAL-RICH MID-M DWARF by Hirano, Teruyuki, Fukui, Akihiko, Mann, Andrew W., Sanchis-Ojeda, Roberto, Gaidos, Eric, Narita, Norio, Eylen, Vincent Van, Lee, Chien-Hsiu, Onozato, Hiroki, Ryu, Tsuguru, Kusakabe, Nobuhiko, Ito, Ayaka, Kuzuhara, Masayuki, Onitsuka, Masahiro, Tatsuuma, Misako, Nowak, Grzegorz, Pallè, Enric, Ribas, Ignasi, Tamura, Motohide, Dai, Fei, Yu, Liang

“…Our follow-up observations included multi-band transit observations from the optical to the near-infrared, low-resolution spectroscopy, and high-resolution adaptive optics (AO) imaging. We perform a global fit to all of the observed transits using a Gaussian process-based method and show that the transit depths in all of the passbands adopted for the ground-based transit follow-ups (r₂′,z [subscript s,]₂,J,H,K[subscript s]) are within ~2σ of the K2 value. …”
Get full text
Get full text
Get full text

A 2R[subscript ⊕] Planet Orbiting the Bright Nearby K Dwarf Wolf 503 by Peterson, Merrin S., Benneke, Björn, David, Trevor J., Dressing, Courtney D., Ciardi, David, Schlieder, Joshua E., Petigura, Erik A., Mamajek, Eric E., Christiansen, Jessie L., Quinn, Sam N., Fulton, Benjamin J., Howard, Andrew W., Sinukoff, Evan, Beichman, Charles, Latham, David W., Yu, Liang, Arango, Nicole, Shporer, Avi, Henning, Thomas, X. Huang, Chelsea, Kosiarek, Molly R., Dittmann, Jason, Isaacson, Howard, Crossfield, Ian Jm

“…We determine the possibility of a companion star and false positive detection to be extremely low using both archival images and high-contrast adaptive optics images from the Palomar observatory. The brightness of the host star makes Wolf 503b a prime target for prompt radial velocity follow-up, and with the small stellar radius (0.690 ± 0.025R [subscript ⊕]), it is also an excellent target for HST transit spectroscopy and detailed atmospheric characterization with JWST. …”
Get full text

HARMONI: advancing science with the next-generation integral field spectrograph by Routledge, LHP

“…We then use observations of CD-23 13701 and Callisto taken with SINFONI with adaptive optics (AO) correction to confirm a result of 14.0+/-2.1% when fitted using molecfit. …”

The R136 star cluster hosts several stars whose individual masses greatly exceed the accepted 150 M-circle dot stellar mass limit by Crowther, P.A., Schnurr, O., Hirschi, R., Yusof, N., Parker, R.J., Goodwin, S.P., Abu Kassim, H.

“…Spectroscopic analyses of hydrogen-rich WN 5-6 stars within the young star clusters NGC 3603 and R136 are presented, using archival Hubble Space Telescope and Very Large Telescope spectroscopy, and high spatial resolution near-IR photometry, including Multi-Conjugate Adaptive Optics Demonstrator (MAD) imaging of R136. We derive high stellar temperatures for the WN stars in NGC 3603 (T-* similar to 42 +/- 2 kK) and R136 (T-* similar to 53 +/- 3 kK) plus clumping-corrected mass-loss rates of 2-5 x 10(-5) M-circle dot yr(-1) which closely agree with theoretical predictions from Vink et al. …”

Microscope-Cockpit: Python-based bespoke microscopy for bio-medical science [version 2; peer review: 2 approved, 2 approved with reservations] by Ian M. Dobbie, Mick A. Phillips, Ilan Davis, Nicholas Hall, David Miguel Susano Pinto, Richard M. Parton, Julio Mateos-Langerak, Danail V. Stoychev, Josh Titlow, Tiago Susano Pinto, Thomas Parks, Martin J. Booth, John W. Sedat

“…We demonstrate the advantages of the Cockpit platform using several bespoke microscopes, including a simple widefield system and a complex system with adaptive optics and structured illumination. A key strength of Cockpit is its use of Python, which means that any microscope built with Cockpit is ready for future customisation by simply adding new libraries, for example machine learning algorithms to enable automated microscopy decision making while imaging.…”
Get full text

Retinal Vasculopathy in Alzheimer’s Disease by Haoshen Shi, Yosef Koronyo, Altan Rentsendorj, Dieu-Trang Fuchs, Julia Sheyn, Keith L. Black, Nazanin Mirzaei, Maya Koronyo-Hamaoui, Maya Koronyo-Hamaoui

“…With new advances in OCT angiography, OCT leakage, scanning laser microscopy, fluorescein angiography and adaptive optics imaging, future studies focusing on retinal vascular AD pathologies could transform non-invasive pre-clinical AD diagnosis and monitoring.…”
Get full text

Scenario-based uncertainty quantification for deep space optical communications by Milton, Julia

“…The system, featuring a 1.5 m segmented primary mirror, a superconducting nanowire single photon detector, signal acquisition and control cameras, and adaptive optics components, will receive downlink from the first demonstration of deep space optical communications from the DSOC payload on the Psyche spacecraft, scheduled to launch later this year.…”
Get full text

M-DWARF RAPID ROTATORS AND THE DETECTION OF RELATIVELY YOUNG MULTIPLE M-STAR SYSTEMS by Swift, J., Barclay, Thomas, Still, M., Handler, G., Muirhead, Philip S., Huber, Daniel, Vida, K., Joss, Matthew Albert Henry, Sanchis Ojeda, Roberto, Olah, K., Rappaport, Saul A, Levine, Alan M

“…Some 30 of the 178 systems exhibit two or more independent short periods within the same Kepler photometric aperture, while several have 3 or more short periods. Adaptive optics imaging and modeling of the Kepler pixel response function for a subset of our sample support the conclusion that the targets with multiple periods are highly likely to be relatively young physical binary, triple, and even quadruple M star systems. …”
Get full text
Get full text
Get full text

THE PHASES DIFFERENTIAL ASTROMETRY DATA ARCHIVE. IV. THE TRIPLE STAR SYSTEMS 63 Gem A AND HR 2896 by Muterspaugh, Matthew W., Fekel, Francis C., Lane, Benjamin F., Hartkopf, William I., Kulkarni, S. R., Konacki, Maciej, Burke, Bernard F., Colavita, M. M., Shao, M., Williamson, M.

“…The PHASES measurements and radial velocities (when available) have been combined with lower precision single-aperture measurements covering a much longer time frame (from eyepiece measurements, speckle interferometry, and adaptive optics) to improve the characterization of the long-period orbits in both binaries. …”
Get full text
Get full text

Star-crossed Lovers DI Tau A and B: Orbit Characterization and Physical Properties Determination by Shih-Yun Tang, Asa G. Stahl, L. Prato, G. H. Schaefer, Christopher M. Johns-Krull, Brian A. Skiff, Charles A. Beichman, Taichi Uyama

“…Using radial velocity data from YESS spanning 17 yr, new adaptive optics observations from Keck II, and a variety of other data from the literature, we derive a preliminary orbital solution for the system that effectively explains the detection and (almost all of the) non-detection history of DI Tau B. …”
Get full text

VLT/MUSE Characterization of Dimorphos Ejecta from the DART Impact by Brian P. Murphy, Cyrielle Opitom, Colin Snodgrass, Matthew M. Knight, Jian-Yang Li, Nancy L. Chabot, Andrew S. Rivkin, Simon F. Green, Paloma Guetzoyan, Daniel Gardener, Julia de León

“…We targeted the Didymos system over 11 nights from 2022 September 26 to October 25 and utilized both narrow- and wide-field observations with and without adaptive optics, respectively. We took advantage of the spectral–spatial coupled measurements and produced both white-light images and spectral maps of the dust reflectance. …”
Get full text

An Estimate of the Binary Star Fraction among Young Stars at the Galactic Center: Possible Evidence of a Radial Dependence by Abhimat K. Gautam, Tuan Do, Andrea M. Ghez, Devin S. Chu, Matthew W. Hosek Jr., Shoko Sakai, Smadar Naoz, Mark R. Morris, Anna Ciurlo, Zoë Haggard, Jessica R. Lu

“…This experiment searched for photometric variability in 102 spectroscopically confirmed young stars, using 119 nights of 10″ wide adaptive optics imaging observations taken at W. M. Keck Observatory over 16 yr in the $K^{\prime} $ -[2.1 μ m] and H -[1.6 μ m] bands. …”
Get full text

Unattended versus Attended Blood Pressure Measurement: Relationship with Retinal Microcirculation by Anna Paini, Claudia Agabiti Rosei, Carolina De Ciuceis, Carlo Aggiusti, Fabio Bertacchini, Marco Cacciatore, Sara Capellini, Roberto Gatta, Paolo Malerba, Deborah Stassaldi, Damiano Rizzoni, Massimo Salvetti, Maria Lorenza Muiesan

“…The retinal arteriole’s wall thickness (WT) was measured automatically by a localization algorithm as the difference between external (ED) and internal diameter (ID) by adaptive optics (RTX-1, Imagine Eyes, Orsay, Francia). …”
Get full text

Improved Companion Mass Limits for Sirius A with Thermal Infrared Coronagraphy Using a Vector-apodizing Phase Plate and Time-domain Starlight-subtraction Techniques by Joseph D. Long, Jared R. Males, Sebastiaan Y. Haffert, Logan Pearce, Mark S. Marley, Katie M. Morzinski, Laird M. Close, Gilles P. P. L. Otten, Frans Snik, Matthew A. Kenworthy, Christoph U. Keller, Philip Hinz, John D. Monnier, Alycia Weinberger, Volker Tolls

“…We use observations with the infrared-optimized Magellan Adaptive Optics (MagAO) system and Clio camera in 3.9 μ m light to place stringent mass constraints on possible undetected companions to Sirius A. …”
Get full text

The McDonald Accelerating Stars Survey: Architecture of the Ancient Five-planet Host System Kepler-444 by Zhoujian Zhang, Brendan P. Bowler, Trent J. Dupuy, Timothy D. Brandt, G. Mirek Brandt, William D. Cochran, Michael Endl, Phillip J. MacQueen, Kaitlin M. Kratter, Howard T. Isaacson, Kyle Franson, Adam L. Kraus, Caroline V. Morley, Yifan Zhou

“…We have measured the system’s relative astrometry using the adaptive optics imaging from Keck/NIRC2 and Kepler-444 A’s radial velocities from the Hobby-Eberly Telescope and reanalyzed relative radial velocities between BC and A from Keck/HIRES. …”
Get full text

Science with integral field spectrographs present and future by Zieleniewski, S

“…We employ a new method of incorporating the strongly wavelength dependent adaptive optics point spread functions. HSIM provides an advancement upon traditional exposure time calculators and allows us to predict the feasibility of a given observing programme with HARMONI through the full analysis of mock data. …”

Handwashing quality assessment via deep learning: a modelling study for monitoring compliance and standards in hospitals and communities by Ting Wang, Jun Xia, Tianyi Wu, Huanqi Ni, Erping Long, Ji-Peng Olivia Li, Lanqin Zhao, Ruoxi Chen, Ruixin Wang, Yanwu Xu, Kai Huang, Haotian Lin

Get full text

Retinal microvascular alterations in patients with active rheumatoid arthritis without cardiovascular risk factors: the potential effects of T cell co-stimulation blockade by Silvia Piantoni, Francesca Regola, Fabrizio Angeli, Alessia Caproli, Annalisa Trovati, Cesare Tomasi, Giulia Chiarini, Claudia Rossini, Claudia Agabiti Rosei, Carolina De Ciuceis, Franco Franceschini, Maria Lorenza Muiesan, Damiano Rizzoni, Paolo Airò

“…The study aimed to non-invasively investigate morphological characteristics of retinal arterioles in a cohort of RA patients treated with ABA.Materials and methodsSeventeen RA patients [median (25th-75thpercentile) age = 58 (48–64) years, baseline 28-joint Disease Activity Score DAS28-C-reactive protein (DAS28-CRP) = 4.4 (3.9–4.6), body mass index (BMI) = 24.2 (23.4–26) kg/m2, rheumatoid factor positive:52.9%, anti-citrullinated peptide autoantibodies positive:76.5%] without known CV risk factors (arterial hypertension, diabetes, hypercholesterolemia, previous CV events, smoking) were evaluated by the adaptive optics imaging system of retinal arterioles before and every 6 months of therapy with ABA (T0, T6 and T12). …”
Get full text

The effect of spherical aberration on visual performance and refractive state for stimuli and tasks typical of night viewing by Iván Marín-Franch, Renfeng Xu, Arthur Bradley, Larry N. Thibos, Norberto López-Gil

“…Purpose: The aim of this work was to examine the impact of Seidel spherical aberration (SA) on optimum refractive state for detecting and discriminating small bright lights on a dark background. Methods: An adaptive-optics system was used to correct ocular aberrations of cyclopleged eyes and then systematically introduce five levels of Seidel SA for a 7-mm diameter pupil: 0, ± 0.18, and ± 0.36 diopters (D) mm−2. …”
Get full text

Detecting Exoplanets Closer to Stars with Moderate Spectral Resolution Integral-field Spectroscopy by Shubh Agrawal, Jean-Baptiste Ruffio, Quinn M. Konopacky, Bruce Macintosh, Dimitri Mawet, Eric L. Nielsen, Kielan K. W. Hoch, Michael C. Liu, Travis S. Barman, William Thompson, Alexandra Z. Greenbaum, Christian Marois, Jenny Patience

“…We show that OSIRIS can outperform high-contrast coronagraphic instruments equipped with extreme adaptive optics and non-redundant masking in the 0.05“–0.3“ regime. …”
Get full text