Results 91 to 100 of about 1,198 (241)

Dazzle: Oversampled Image Reconstruction and Difference-imaging Photometry for the Nancy Grace Roman Space Telescope

The Astronomical Journal
We present algorithms and software for constructing high-precision difference images to detect and measure transients, such as microlensing events, in crowded stellar fields using the Nancy Grace Roman Space Telescope.
Michael D. Albrow
doaj   +1 more source

Status of the Calan-Hertfordshire Extrasolar Planet Search

EPJ Web of Conferences, 2013
In these proceedings we give a status update of the Calan-Hertfordshire Extrasolar Planet Search, an international collaboration led from Chile that aims to discover more planets around super metal-rich and Sun-like stars, and then follow these up with ...
Jordán Andres, Ivanyuk Oleksiy, Pavlenko Yakiv, Barnes John R., Jones Matias I., Murgas Felipe, Tuomi Mikko, Rojo Patricio, Jenkins James S., Jones Hugh R.A., Day-Jones Avril C., Ruiz Maria-Teresa, Pinfield David J.   +12 more
doaj   +1 more source

Cortico‐Striatal‐Midbrain Circuit Dysregulation Underlying MK‐801 Induced Impulsivity and the Ameliorative Effects of SEP

Advanced Science, Volume 13, Issue 3, 14 January 2026.
Impulsivity is a symptom across multiple psychiatric disorders, yet its neural basis remains elusive. This study shows that the NMDAR antagonist MK‐801 elevates dopamine release and disrupts neuronal selectivity in the nucleus accumbens, leading to impulsive behavior.
Xueru Wang, Qinyu Li, Zijie Li, Xuejiao Wang, Hui Yuan, Pingting Yang, Ling Qin   +6 more
wiley   +1 more source

An Oasis in the Brown Dwarf Desert: Confirmation of Two Low-mass Transiting Brown Dwarfs Discovered by TESS

The Astronomical Journal
As the intermediate-mass siblings of stars and planets, brown dwarfs (BDs) are vital to study for a better understanding of how objects change across the planet-to-star mass range.
Elina Yuchen Zhang, Theron W. Carmichael, Daniel Huber, Keivan G. Stassun, Akihiko Fukui, Norio Narita, Felipe Murgas, Enric Palle, David W. Latham, Michael L. Calkins, Sara Seager, Joshua N. Winn, Michael Vezie, Rebekah Hounsell, Hugh P. Osborn, Douglas A. Caldwell, Jon M. Jenkins   +16 more
doaj   +1 more source

Next‐generation Alzheimer's therapeutics: target assessment and enablement at the Indiana University School of Medicine–Purdue University TREAT‐AD Center

Alzheimer's &Dementia, Volume 22, Issue 1, January 2026.
Abstract The incidence of Alzheimer's disease (AD) continues to increase, despite decades of effort to develop disease‐modifying therapies. In response, the National Institute on Aging (NIA) established the TaRget Enablement to Accelerate Therapy Development for Alzheimer's Disease (TREAT‐AD) centers to address the gap between basic research and ...
Timothy I. Richardson, Rebecca C. Klein, Kun Huang, Jie Zhang, Andrew D. Mesecar, Jeffrey L. Dage, Brent Clayton, Bruce T. Lamb, Alan D. Palkowitz   +8 more
wiley   +1 more source

Warm ice giant GJ 3470b - II. Revised planetary and stellar parameters from optical to near-infrared transit photometry [PDF]

, 2014
Lauren I. Biddle, Kyle A. Pearson, Ian J. M. Crossfield, Benjamin J. Fulton, S. Ciceri, Jason D. Eastman, Travis Barman, Andrew W. Mann, G. W. Henry, Andrew W. Howard, Michael H. Williamson, Evan Sinukoff, Diana Dragomir, Laura Vican, L. Mancini, J. Southworth, Adam Greenberg, Jake D. Turner, R. Thompson, Brian Taylor, S. E. Levine, Matthew Webber   +21 more
openalex   +1 more source

Spin-orbit alignment from transit photometry: the case for multi-colour observations

, 2021
M. J. Hooton
openalex   +1 more source

PERICLES: A Set of Empirical Rotational Isochrones Modeled on Cool Dwarfs in Open Clusters and Wide Binaries

Astronomische Nachrichten, Volume 347, Issue 1, January 2026.
ABSTRACT Isochrones, equal‐age curves, are widely used in astrophysics to estimate stellar ages. Classical stellar parameters are, however, very limited in their usability for main sequence stars because of their weak age‐dependence. Here, rotation period measurements provide complementary information.
David Gruner, Sydney A. Barnes
wiley   +1 more source

Searching for GEMS: Discovery and Characterization of Two Brown Dwarfs Around M Dwarfs

The Astronomical Journal
Brown dwarfs bridge the gap between stars and planets, providing valuable insight into both planetary and stellar-formation mechanisms. Yet the census of transiting brown-dwarf companions, in particular around M-dwarf stars, remains incomplete. We report
Alexander Larsen, Tera N. Swaby, Henry A. Kobulnicky, Caleb I. Cañas, Shubham Kanodia, Jessica Libby-Roberts, Andrew Monson, Arvind F. Gupta, William Cochran, Suvrath Mahadevan, Chad Bender, Scott A. Diddams, Samuel Halverson, Andrea S. J. Lin, Maxwell Moe, Joe Ninan, Paul Robertson, Arpita Roy, Christian Schwab, Gudmundur Stefansson   +19 more
doaj   +1 more source

HST/FGS Photometry of Planetary Transits of HD 209458 [PDF]

AIP Conference Proceedings, 2004
We present the data, and modeling and analysis results from the photometric monitoring of five planetary transits of HD 209458 using the Fine Guidance Sensors (FGS) onboard the Hubble Space Telescope (HST). We have now included the output from all four FGS photometers in our data reduction and analysis increasing our S/N over our previous results.
openaire   +1 more source