Results 71 to 80 of about 476,629 (275)

IVOA Recommendation: IVOA Photometry Data Model [PDF]

, 2014
The Photometry Data Model (PhotDM) standard describes photometry filters, photometric systems, magnitude systems, zero points and its interrelation with the other IVOA data models through a simple data model. Particular attention is given necessarily to optical photometry where specifications of magnitude systems and photometric zero points are ...
arxiv   +1 more source

MAD@VLT: Deep into the Madding Crowd of Omega Centauri

, 2008
We present deep and accurate Near-Infrared (NIR) photometry of the Galactic Globular Cluster (GC) Omega Cen. Data were collected using the Multi-Conjugate Adaptive Optics Demonstrator (MAD) on VLT (ESO).
A. M., Amico P., Bono G., Buonanno R., Calamida A., Caputo F., Corsi C. E., D'Odorico S., D., Dall'Ora M., DEGL'INNOCENTI S, Ferraro I., Freyhamme, Iannicola G., Koeste, L. M., Marchetti E., Monelli M., Nonino M., P. G., Piersimon, Prada Moron, Pulone L., Romaniello M., Stetson P. B.   +24 more
core   +1 more source

Photometry and Spectroscopy of the GRB 970508 Optical Counterpart

Science, 1998
An optical transient within the error box of the gamma ray burst GRB 970508 was imaged 4 hours after the event. It displayed a strong ultraviolet excess, and reached maximum brightness 2 days later. The optical spectra did not show any emission lines, and no variations on time scales of minutes were observed for 1 hour during the decline phase ...
M. Mignoli, Javier Gorosabel, Tom Broadhurst, Ralf Fockenbrock, Kurt Birkle, Helmuth Kristen, Niels Lund, Enrique Martínez-González, Narciso Benítez, Holger Pedersen, Adriano Guarnieri, Jochen Greiner, Søren Brandt, Luciano Nicastro, Mark Lacy, N. Masetti, Christian Wolf, Magrethe Wold, Eliana Palazzi, Filippo Frontera, Adalberto Piccioni, Corrado Bartolini, Marco Feroci, Luigi Piro, A. J. Castro-Tirado, Adrick Broeils, Enrico Costa   +26 more
openaire   +3 more sources

Essential Role of the Anterior Piriform Cortex in Mediating Social Novelty Output via a Top–Down Circuit

Advanced Science, EarlyView.
The anterior piriform cortex (APC) exhibits distinct neural firings and calcium transients in response to familiar and novel mice, with a more robust response to the novel one. Selectively inhibiting APC pyramidal neurons disrupt social novelty recognition without impairing basic odor discrimination.
Jingwei Zhou, Zhaoyang Yin, Zhiyun Chen, Hanyu Fu, Qun Li, Shan Li, Ying Zhang, Xianzhi Zhang, Dewei Tang, Anan Li, Dejuan Wang   +10 more
wiley   +1 more source

Correction of distortion for optimal image stacking in Wide Field Adaptive Optics: Application to GeMS data

, 2016
The advent of Wide Field Adaptive Optics (WFAO) systems marks the beginning of a new era in high spatial resolution imaging. The newly commissioned Gemini South Multi-Conjugate Adaptive Optics System (GeMS) combined with the infrared camera Gemini South ...
Andersen, M., Bernard, A., Bounissou, S., Fusco, T., Mugnier, L. M., Neichel, B., Plana, H., Samal, M., Zavagno, A.   +8 more
core   +2 more sources

TASS Mark IV Photometric Survey of the Northern Sky [PDF]

, 2006
The Amateur Sky Survey (TASS) is a loose confederation of amateur and professional astronomers. We describe the design and construction of our Mark IV systems, a set of wide-field telescopes with CCD cameras which take simultaneous images in the $V$ and $
Hog E., Maddox S. J., Manfroid J., Michael P. Sallman, Michael W. Richmond, Pojmanski G., Robert P. Creager, Thomas F. Droege   +7 more
core   +3 more sources

Cell‐Type Specific Circuits in the Mammillary Body for Place and Object Recognition Memory

Advanced Science, EarlyView.
Li et al. defined two novel glutamatergic neuronal subtypes in the medial mammillary nucleus, pars lateralis‐located parvalbumin (PV) neurons, and basalis‐located Drd2 neurons. PV and Drd2 neurons differ in their electrophysiological properties encoded by Kcnn4 and Cacna1h, and selectively modulate place and object recognition memory by two distinct ...
Lanfang Li, Yiqing Guo, Wei Jing, Xiaomei Tang, Jinyu Zeng, Zhenye Hou, Yige Song, Aodi He, Hao Li, Ling‐Qiang Zhu, Youming Lu, Xinyan Li   +11 more
wiley   +1 more source

Optical Properties of Light-Scattering Standards for CCD Photometry

Sensors, 2023
This paper analyzes the light-scattering standards currently used for calibration (verification) and systematic research in photo and spectrophotometry tools. The application specificities in studying the diffuse reflected and transmitted light during biomedical CCD photometry are considered.
Denys Bondariev, Natalia Bezugla, Paweł Komada, Nataliia Stelmakh, Mykhailo Bezuglyi   +4 more
openaire   +3 more sources

Multi-Conjugate Adaptive Optics images of the Trapezium Cluster

, 2007
Multi-Conjugate Adaptive Optics (MCAO) combines the advantages of standard adaptive optics, which provides high contrast and high spatial resolution, and of wide field ~1' imaging. Up to recently, MCAO for astronomy was limited to laboratory experiments.
Bouy, D. Barrado y Navascués, E. L. Martín, E. Marchetti, Getman, Gilmozzi, H. Bouy, Hartmann, Hillenbrand, J. Kolb, Lada, Lada, Luhman, Marchetti, McCaughrean, Muench, N. Huélamo, O'Dell, O'Dell, Ochsenbein, Pantin, Petr, Prosser, Ragazzoni, Robberto, Saint-Pe, Schertl, Shack, Simon, Smith, Vicente   +30 more
core   +2 more sources

Prefrontal FGF1 Signaling is Required for Accumbal Deep Brain Stimulation Treatment of Addiction

Advanced Science, EarlyView.
This research delineates that a cortical‐accumbal pathway and local FGF1 signaling in the medial prefrontal cortex are critical for NAc‐DBS to be effective in altering morphine CPP. These findings demonstrate a top‐down motif to regulate the therapeutic effects of subcortical DBS on addiction and support the potential for addiction treatments involving
Wan‐Kun Gong, Xue Li, Le Wang, Qian Yang, Alix Tiran‐Cappello, Zhichao Liang, James Samsom, Quanying Liu, He Lin, Christelle Baunez, Fang Liu, Ti‐Fei Yuan   +11 more
wiley   +1 more source