Results 81 to 90 of about 1,379 (186)

Analyzing the Onset of Cometary Activity by the Jupiter-family Comet 2023 RN3

The Astronomical Journal
We utilize serendipitous observations from the Asteroid Terrestrial-impact Last Alert System (ATLAS) and the Zwicky Transient Facility in addition to targeted follow-up observations from the Las Cumbres Observatory (LCO) and Liverpool Telescope to ...
Matthew M. Dobson, Megan E. Schwamb, Alan Fitzsimmons, Michael S. P. Kelley, Carrie E. Holt, Joseph Murtagh, Henry H. Hsieh, Larry Denneau, Nicolas Erasmus, A. N. Heinze, Luke J. Shingles, Robert J. Siverd, Ken W. Smith, John L. Tonry, Henry Weiland, David. R. Young, Tim Lister, Edward Gomez, Joey Chatelain, Sarah Greenstreet   +19 more
doaj   +1 more source

The first data release of J-VAR: Multi-filter light curves for 1.3 million point-like sources

Astronomy & Astrophysics
Context. The Javalambre VARiability survey (J-VAR) is a multi-filter photometric survey conducted at the Observatorio Astrofísico de Javalambre, covering selected regions of the northern sky, and providing time-domain information for the Javalambre ...
Pyrzas S., Vázquez Ramió H., Ederoclite A., Moreno-Signes A., Castillo-Ramírez J., Civera T., Hernández-Fuertes J., Muniesa-Gallardo D., Morate D., Díaz-Martín M. C., Galindo-Guil F. J., Iglesias-Marzoa R., Lacruz E., Lamadrid J. L., López-Martinez F., Maícas N., Jiménez-Esteban F., Cenarro A. J., Cristóbal-Hornillos D., Hernández-Monteagudo C., López-Sanjuan C., Marín-Franch A., Moles M., Varela J., Alcaniz J., Dupke R., Sodré L., Angulo R. E.   +27 more
doaj   +1 more source

The Discovery and Evolution of a Possible New Epoch of Cometary Activity by the Centaur (2060) Chiron

The Planetary Science Journal
Centaurs are small solar system objects on chaotic orbits in the giant planet region, forming an evolutionary continuum with the Kuiper Belt objects and Jupiter-family comets.
Matthew M. Dobson, Megan E. Schwamb, Alan Fitzsimmons, Charles Schambeau, Aren Beck, Larry Denneau, Nicolas Erasmus, A. N. Heinze, Luke J. Shingles, Robert J. Siverd, Ken W. Smith, John L. Tonry, Henry Weiland, David. R. Young, Michael S. P. Kelley, Tim Lister, Pedro H. Bernardinelli, Marin Ferrais, Emmanuel Jehin, Grigori Fedorets, Susan D. Benecchi, Anne J. Verbiscer, Joseph Murtagh, René Duffard, Edward Gomez, Joey Chatelain, Sarah Greenstreet   +26 more
doaj   +1 more source

A NIRCam-dark Galaxy Detected with the MIRI/F1000W Filter in the MIDIS/JADES Hubble Ultra Deep Field

The Astrophysical Journal Letters
We report the discovery of Cerberus, an extremely red object detected with the MIRI Deep Imaging Survey (MIDIS) observations in the F1000W filter of the Hubble Ultra Deep Field.
Pablo G. Pérez-González, Pierluigi Rinaldi, Karina I. Caputi, Javier Álvarez-Márquez, Marianna Annunziatella, Danial Langeroodi, Thibaud Moutard, Leindert Boogaard, Edoardo Iani, Jens Melinder, Luca Costantin, Göran Östlin, Luis Colina, Thomas R. Greve, Gillian Wright, Almudena Alonso-Herrero, Arjan Bik, Sarah E. I. Bosman, Alejandro Crespo Gómez, Daniel Dicken, Andreas Eckart, Macarena García-Marín, Steven Gillman, Manuel Güdel, Thomas Henning, Jens Hjorth, Iris Jermann, Álvaro Labiano, Romain A. Meyer, Florian Peiβker, John P. Pye, Thomas P. Ray, Tuomo Tikkanen, Fabian Walter, Paul P. van der Werf   +34 more
doaj   +1 more source

CCD Photometry of the Open Cluster Tombaugh 5 in the Vilnius System

Open Astronomy, 2011
We present the results of eight-color CCD photometry of 674 stars in the direction of the open cluster Tombaugh 5 in Camelopardalis. The stars are observed in the Vilnius system supplemented by the broad-band I filter; the field is of 22’ diameter, the ...
Zdanavičius J., Vrba F. J., Zdanavičius K., Straižys V., Boyle R. P.   +4 more
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The First Photometric Evidence of a Transient/Variable Source at z > 5 with JWST

The Astrophysical Journal
The James Webb Space Telescope (JWST) discovered 79 transients out to z ∼ 4.8 through the JADES Transient Survey (JTS), but the JTS did not find any z > 5 transients.
Christa DeCoursey, Eiichi Egami, Fengwu Sun, Arshia Akhtarkavan, Rachana Bhatawdekar, Andrew J. Bunker, David A. Coulter, Michael Engesser, Ori D. Fox, Sebastian Gomez, Kohei Inayoshi, Benjamin D. Johnson, Mitchell Karmen, Conor Larison, Xiaojing Lin, Jianwei Lyu, Seppo Mattila, Takashi J. Moriya, Justin D. R. Pierel, Dávid Puskás, Armin Rest, George H. Rieke, Brant Robertson, Sepehr Salamat, Louis-Gregory Strolger, Sandro Tacchella, Christian Vassallo, Christina C. Williams, Yossef Zenati, Junyu Zhang   +29 more
doaj   +1 more source

What Is the Nature of Little Red Dots and what Is Not, MIRI SMILES Edition

The Astrophysical Journal
We study 31 little red dots (LRD) detected by JADES/NIRCam and covered by the SMILES/MIRI survey, of which ∼70% are detected in the two bluest MIRI bands and 40% in redder MIRI filters.
Pablo G. Pérez-González, Guillermo Barro, George H. Rieke, Jianwei Lyu, Marcia Rieke, Stacey Alberts, Christina C. Williams, Kevin Hainline, Fengwu Sun, Dávid Puskás, Marianna Annunziatella, William M. Baker, Andrew J. Bunker, Eiichi Egami, Zhiyuan Ji, Benjamin D. Johnson, Brant Robertson, Bruno Rodríguez Del Pino, Wiphu Rujopakarn, Irene Shivaei, Sandro Tacchella, Christopher N. A. Willmer, Chris Willott   +22 more
doaj   +1 more source

Broad-band photometry of NGC 6530 [PDF]

Monthly Notices of the Royal Astronomical Society, 1977
openaire   +1 more source

Measurement of light: errors in broad band photometry

, 1993
Broad band photometry is the most widely practiced method of measuring illumination in buildings. Errors in such measurements could occur if the photometer relative spectral responsivity does not exactly match the spectral luminous efficiency of the human eye.
openaire   +1 more source

Dust Production Rates in Jupiter-family Comets. II. Trends and Population Insights from ATLAS Photometry of 116 JFCs

The Planetary Science Journal
Jupiter-family comets (JFCs) have orbital periods of less than 20 yr and therefore undergo more frequent sublimation compared to other comet populations.
A. Fraser Gillan, Alan Fitzsimmons, Larry Denneau, Robert J. Siverd, Ken W. Smith, John L. Tonry, David R. Young   +6 more
doaj   +1 more source