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Visibility Predictions for Near-Future Satellite Megaconstellations: Latitudes near 50 Degrees will Experience the Worst Light Pollution

Megaconstellations of thousands to tens of thousands of artificial satellites (satcons) are rapidly being developed and launched. These satcons will have negative consequences for observational astronomy research, and are poised to…

Earth and Planetary Astrophysics · Physics 2022-01-05 S. M. Lawler , A. C. Boley , H. Rein

Pre-Flashing WFC3/IR Time-Series, Spatial Scan Observations

Spatial scan observations using WFC3's IR channel exhibit time-dependent systematics (in the form of a ramp or hook) that have been attributed to the effects of persistence. The amplitude of these systematics is often two orders of…

Instrumentation and Methods for Astrophysics · Physics 2019-10-08 K. B. Stevenson , W. Eck

Measurement of the integrated luminosity of the data collected at 3.773 GeV by BESIII from 2021 to 2024

We present a measurement of the integrated luminosity of $e^+e^-$ collision data collected with the BESIII detector at the BEPCII collider at a center-of-mass energy of $E_{\rm cm} = 3.773$~GeV. The integrated luminosities of the data sets…

High Energy Physics - Experiment · Physics 2024-12-12 BESIII Collaboration , M. Ablikim , M. N. Achasov , P. Adlarson , O. Afedulidis , X. C. Ai , R. Aliberti , A. Amoroso , Q. An , Y. Bai , O. Bakina , I. Balossino , Y. Ban , H. -R. Bao , V. Batozskaya , K. Begzsuren , N. Berger , M. Berlowski , M. Bertani , D. Bettoni , F. Bianchi , E. Bianco , A. Bortone , I. Boyko , R. A. Briere , A. Brueggemann , H. Cai , X. Cai , A. Calcaterra , G. F. Cao , N. Cao , S. A. Cetin , J. F. Chang , G. R. Che , G. Chelkov , C. Chen , C. H. Chen , Chao Chen , G. Chen , H. S. Chen , H. Y. Chen , M. L. Chen , S. J. Chen , S. L. Chen , S. M. Chen , T. Chen , X. R. Chen , X. T. Chen , Y. B. Chen , Y. Q. Chen , Z. J. Chen , Z. Y. Chen , S. K. Choi , G. Cibinetto , F. Cossio , J. J. Cui , H. L. Dai , J. P. Dai , A. Dbeyssi , R. E. de Boer , D. Dedovich , C. Q. Deng , Z. Y. Deng , A. Denig , I. Denysenko , M. Destefanis , F. De Mori , B. Ding , X. X. Ding , Y. Ding , Y. Ding , J. Dong , L. Y. Dong , M. Y. Dong , X. Dong , M. C. Du , S. X. Du , Y. Y. Duan , Z. H. Duan , P. Egorov , Y. H. Fan , J. Fang , J. Fang , S. S. Fang , W. X. Fang , Y. Fang , Y. Q. Fang , R. Farinelli , L. Fava , F. Feldbauer , G. Felici , C. Q. Feng , J. H. Feng , Y. T. Feng , M. Fritsch , C. D. Fu , J. L. Fu , Y. W. Fu , H. Gao , X. B. Gao , Y. N. Gao , Yang Gao , S. Garbolino , I. Garzia , L. Ge , P. T. Ge , Z. W. Ge , C. Geng , E. M. Gersabeck , A. Gilman , K. Goetzen , L. Gong , W. X. Gong , W. Gradl , S. Gramigna , M. Greco , M. H. Gu , Y. T. Gu , C. Y. Guan , A. Q. Guo , L. B. Guo , M. J. Guo , R. P. Guo , Y. P. Guo , A. Guskov , J. Gutierrez , K. L. Han , T. T. Han , F. Hanisch , X. Q. Hao , F. A. Harris , K. K. He , K. L. He , F. H. Heinsius , C. H. Heinz , Y. K. Heng , C. Herold , T. Holtmann , P. C. Hong , G. Y. Hou , X. T. Hou , Y. R. Hou , Z. L. Hou , B. Y. Hu , H. M. Hu , J. F. Hu , S. L. Hu , T. Hu , Y. Hu , G. S. Huang , K. X. Huang , L. Q. Huang , X. T. Huang , Y. P. Huang , Y. S. Huang , T. Hussain , F. Hölzken , N. Hüsken , N. in der Wiesche , J. Jackson , S. Janchiv , J. H. Jeong , Q. Ji , Q. P. Ji , W. Ji , X. B. Ji , X. L. Ji , Y. Y. Ji , X. Q. Jia , Z. K. Jia , D. Jiang , H. B. Jiang , P. C. Jiang , S. S. Jiang , T. J. Jiang , X. S. Jiang , Y. Jiang , J. B. Jiao , J. K. Jiao , Z. Jiao , S. Jin , Y. Jin , M. Q. Jing , X. M. Jing , T. Johansson , S. Kabana , N. Kalantar-Nayestanaki , X. L. Kang , X. S. Kang , M. Kavatsyuk , B. C. Ke , V. Khachatryan , A. Khoukaz , R. Kiuchi , O. B. Kolcu , B. Kopf , M. Kuessner , X. Kui , N. Kumar , A. Kupsc , W. Kühn , J. J. Lane , L. Lavezzi , T. T. Lei , Z. H. Lei , M. Lellmann , T. Lenz , C. Li , C. Li , C. H. Li , Cheng Li , D. M. Li , F. Li , G. Li , H. B. Li , H. J. Li , H. N. Li , Hui Li , J. R. Li , J. S. Li , K. Li , L. J. Li , L. K. Li , Lei Li , M. H. Li , P. R. Li , Q. M. Li , Q. X. Li , R. Li , S. X. Li , T. Li , W. D. Li , W. G. Li , X. Li , X. H. Li , X. L. Li , X. Y. Li , X. Z. Li , Y. G. Li , Z. J. Li , Z. Y. Li , C. Liang , H. Liang , H. Liang , Y. F. Liang , Y. T. Liang , G. R. Liao , Y. P. Liao , J. Libby , A. Limphirat , C. C. Lin , D. X. Lin , T. Lin , B. J. Liu , B. X. Liu , C. Liu , C. X. Liu , F. Liu , F. H. Liu , Feng Liu , G. M. Liu , H. Liu , H. B. Liu , H. H. Liu , H. M. Liu , Huihui Liu , J. B. Liu , J. Y. Liu , K. Liu , K. Y. Liu , Ke Liu , L. Liu , L. C. Liu , Lu Liu , M. H. Liu , P. L. Liu , Q. Liu , S. B. Liu , T. Liu , W. K. Liu , W. M. Liu , X. Liu , X. Liu , Y. Liu , Y. Liu , Y. B. Liu , Z. A. Liu , Z. D. Liu , Z. Q. Liu , X. C. Lou , F. X. Lu , H. J. Lu , J. G. Lu , X. L. Lu , Y. Lu , Y. P. Lu , Z. H. Lu , C. L. Luo , J. R. Luo , M. X. Luo , T. Luo , X. L. Luo , X. R. Lyu , Y. F. Lyu , F. C. Ma , H. Ma , H. L. Ma , J. L. Ma , L. L. Ma , M. M. Ma , Q. M. Ma , R. Q. Ma , T. Ma , X. T. Ma , X. Y. Ma , Y. Ma , Y. M. Ma , F. E. Maas , M. Maggiora , S. Malde , Y. J. Mao , Z. P. Mao , S. Marcello , Z. X. Meng , J. G. Messchendorp , G. Mezzadri , H. Miao , T. J. Min , R. E. Mitchell , X. H. Mo , B. Moses , N. Yu. Muchnoi , J. Muskalla , Y. Nefedov , F. Nerling , L. S. Nie , I. B. Nikolaev , Z. Ning , S. Nisar , Q. L. Niu , W. D. Niu , Y. Niu , S. L. Olsen , Q. Ouyang , S. Pacetti , X. Pan , Y. Pan , A. Pathak , Y. P. Pei , M. Pelizaeus , H. P. Peng , Y. Y. Peng , K. Peters , J. L. Ping , R. G. Ping , S. Plura , V. Prasad , F. Z. Qi , H. Qi , H. R. Qi , M. Qi , T. Y. Qi , S. Qian , W. B. Qian , C. F. Qiao , X. K. Qiao , J. J. Qin , L. Q. Qin , L. Y. Qin , X. P. Qin , X. S. Qin , Z. H. Qin , J. F. Qiu , Z. H. Qu , C. F. Redmer , K. J. Ren , A. Rivetti , M. Rolo , G. Rong , Ch. Rosner , S. N. Ruan , N. Salone , A. Sarantsev , Y. Schelhaas , K. Schoenning , M. Scodeggio , K. Y. Shan , W. Shan , X. Y. Shan , Z. J. Shang , J. F. Shangguan , L. G. Shao , M. Shao , C. P. Shen , H. F. Shen , W. H. Shen , X. Y. Shen , B. A. Shi , H. Shi , H. C. Shi , J. L. Shi , J. Y. Shi , Q. Q. Shi , S. Y. Shi , X. Shi , J. J. Song , T. Z. Song , W. M. Song , Y. J. Song , Y. X. Song , S. Sosio , S. Spataro , F. Stieler , Y. J. Su , G. B. Sun , G. X. Sun , H. Sun , H. K. Sun , J. F. Sun , K. Sun , L. Sun , S. S. Sun , T. Sun , W. Y. Sun , Y. Sun , Y. J. Sun , Y. Z. Sun , Z. Q. Sun , Z. T. Sun , C. J. Tang , G. Y. Tang , J. Tang , M. Tang , Y. A. Tang , L. Y. Tao , Q. T. Tao , M. Tat , J. X. Teng , V. Thoren , W. H. Tian , Y. Tian , Z. F. Tian , I. Uman , Y. Wan , S. J. Wang , B. Wang , B. L. Wang , Bo Wang , D. Y. Wang , F. Wang , H. J. Wang , J. J. Wang , J. P. Wang , K. Wang , L. L. Wang , M. Wang , N. Y. Wang , S. Wang , S. Wang , T. Wang , T. J. Wang , W. Wang , W. Wang , W. P. Wang , X. Wang , X. F. Wang , X. J. Wang , X. L. Wang , X. N. Wang , Y. Wang , Y. D. Wang , Y. F. Wang , Y. L. Wang , Y. N. Wang , Y. Q. Wang , Yaqian Wang , Yi Wang , Z. Wang , Z. L. Wang , Z. Y. Wang , Ziyi Wang , D. H. Wei , F. Weidner , S. P. Wen , Y. R. Wen , U. Wiedner , G. Wilkinson , M. Wolke , L. Wollenberg , C. Wu , J. F. Wu , L. H. Wu , L. J. Wu , X. Wu , X. H. Wu , Y. Wu , Y. H. Wu , Y. J. Wu , Z. Wu , L. Xia , X. M. Xian , B. H. Xiang , T. Xiang , D. Xiao , G. Y. Xiao , S. Y. Xiao , Y. L. Xiao , Z. J. Xiao , C. Xie , X. H. Xie , Y. Xie , Y. G. Xie , Y. H. Xie , Z. P. Xie , T. Y. Xing , C. F. Xu , C. J. Xu , G. F. Xu , H. Y. Xu , M. Xu , Q. J. Xu , Q. N. Xu , W. Xu , W. L. Xu , X. P. Xu , Y. C. Xu , Z. S. Xu , F. Yan , L. Yan , W. B. Yan , W. C. Yan , X. Q. Yan , H. J. Yang , H. L. Yang , H. X. Yang , T. Yang , Y. Yang , Y. F. Yang , Y. F. Yang , Y. X. Yang , Z. W. Yang , Z. P. Yao , M. Ye , M. H. Ye , J. H. Yin , Z. Y. You , B. X. Yu , C. X. Yu , G. Yu , J. S. Yu , T. Yu , X. D. Yu , Y. C. Yu , C. Z. Yuan , J. Yuan , J. Yuan , L. Yuan , S. C. Yuan , Y. Yuan , Z. Y. Yuan , C. X. Yue , A. A. Zafar , F. R. Zeng , S. H. Zeng , X. Zeng , Y. Zeng , Y. J. Zeng , Y. J. Zeng , X. Y. Zhai , Y. C. Zhai , Y. H. Zhan , A. Q. Zhang , B. L. Zhang , B. X. Zhang , D. H. Zhang , G. Y. Zhang , H. Zhang , H. Zhang , H. C. Zhang , H. H. Zhang , H. H. Zhang , H. Q. Zhang , H. R. Zhang , H. Y. Zhang , J. Zhang , J. Zhang , J. J. Zhang , J. L. Zhang , J. Q. Zhang , J. S. Zhang , J. W. Zhang , J. X. Zhang , J. Y. Zhang , J. Z. Zhang , Jianyu Zhang , L. M. Zhang , Lei Zhang , P. Zhang , Q. Y. Zhang , R. Y. Zhang , S. H. Zhang , Shulei Zhang , X. D. Zhang , X. M. Zhang , X. Y. Zhang , Y. Zhang , Y. Zhang , Y. T. Zhang , Y. H. Zhang , Y. M. Zhang , Yan Zhang , Z. D. Zhang , Z. H. Zhang , Z. L. Zhang , Z. Y. Zhang , Z. Y. Zhang , Z. Z. Zhang , G. Zhao , J. Y. Zhao , J. Z. Zhao , L. Zhao , Lei Zhao , M. G. Zhao , N. Zhao , R. P. Zhao , S. J. Zhao , Y. B. Zhao , Y. X. Zhao , Z. G. Zhao , A. Zhemchugov , B. Zheng , B. M. Zheng , J. P. Zheng , W. J. Zheng , Y. H. Zheng , B. Zhong , X. Zhong , H. Zhou , J. Y. Zhou , L. P. Zhou , S. Zhou , X. Zhou , X. K. Zhou , X. R. Zhou , X. Y. Zhou , Y. Z. Zhou , J. Zhu , K. Zhu , K. J. Zhu , K. S. Zhu , L. Zhu , L. X. Zhu , S. H. Zhu , T. J. Zhu , W. D. Zhu , Y. C. Zhu , Z. A. Zhu , J. H. Zou , J. Zu

Multicolour Optical Variability Monitoring of Blazars with High Time Resolution

We carried out a high time-resolution, multicolour optical observing campaign for eight $\gamma$-ray detected blazars during 2010-2020. We analyze flux variations, correlations between magnitudes and colours on different timescales.…

High Energy Astrophysical Phenomena · Physics 2023-02-15 X. Chang , T. F. Yi , D. R. Xiong , C. X. Liu , X. Yang , H. Z. Li , Y. L. Gong , W. W. Na , Y. Li , Z. H. Chen , J. P. Chen , L. S. Mao

Linking Solar Minimum, Space Weather, and Night Sky Brightness

This paper presents time series observations and analysis of broadband night sky airglow intensity 4 September 2018 through 30 April 2020. Data were obtained at 5 sites spanning more than 8500 km during the historically deep minimum of…

Solar and Stellar Astrophysics · Physics 2021-12-06 Albert D. Grauer , Patricia A. Grauer

The White Dwarf Luminosity Function from SDSS Imaging Data

A sample of white dwarfs is selected from SDSS DR3 imaging data using their reduced proper motions, based on improved proper motions from SDSS plus USNO-B combined data. Numerous SDSS and followup spectra (Kilic et al. 2005) are used to…

Astrophysics · Physics 2008-11-26 Hugh C. Harris , Jeffrey A. Munn , Mukremin Kilic , James Liebert , Kurtis A. Williams , Ted von Hippel , Stephen E. Levine , David G. Monet , Daniel J. Eisenstein , S. J. Kleinman , T. S. Metcalfe , Atsuko Nitta , D. E. Winget , J. Brinkmann , Masataka Fukugita , G. R. Knapp , Robert H. Lupton , J. Allyn Smith , Donald P. Schneider

Comet C/2011 W3 (Lovejoy): Orbit Determination, Outbursts, Disintegration of Nucleus, Dust-Tail Morphology, and Relationship to New Cluster of Bright Sungrazers

We describe the physical and orbital properties of C/2011 W3. After surviving perihelion, the comet underwent major changes (permanent loss of nuclear condensation, formation of spine tail). The process of disintegration culminated with an…

Earth and Planetary Astrophysics · Physics 2015-06-05 Zdenek Sekanina , Paul W. Chodas

Minimal dark matter in type III seesaw

We explore the possibility of a new dark matter candidate in the supersymmetric type III seesaw mechanism where a neutral scalar component of the Y=0 triplet can be the lightest supersymmetric particle. Its thermal abundance can be in the…

High Energy Physics - Phenomenology · Physics 2010-09-07 Eung Jin Chun

Intranight variability of 3C 454.3 during its 2010 November outburst

Context. 3C 454.3 is a very active flat spectrum radio quasar (blazar) that has undergone a recent outburst in all observed bands, including the optical. Aims. In this work we explore the short-term optical variability of 3C 454.3 during…

High Energy Astrophysical Phenomena · Physics 2015-05-27 R. Bachev , E. Semkov , A. Strigachev , B. Mihov , A. C. Gupta , S. Peneva , E. Ovcharov , A. Valcheva , A. Lalova

The Ongoing Decline in Activity of Comet 103P/Hartley 2

We report photometric observations of Comet 103P/Hartley 2 during its 2023 apparition. Our campaign, conducted from August through December 2023, combined data from a global network of citizen astronomers coordinated by Unistellar and the…

Earth and Planetary Astrophysics · Physics 2025-08-29 Ariel Graykowski , Guillaume Langin , David Chiron , Bruno Guillet , Franck Marchis , Nicolas Biver , Gérard Arlic , Bernard Baudouin , Etienne Bertrand , Randall Blake , Cyrille Bosquet , John K. Bradley , Isabelle Brocard , Christophe Cac , Alain Cagna , Nicolas Castel , Eric Chariot , Olivier Clerget , Tom Coarrase , Lucas Cogniaux , Julien Collot , Christophe Coté , Michel Deconinck , Jean-Paul Desgrees , Josselin Desmars , Giuseppe Di Tommaso , José Donas , William Drapeaud , Todd Forrester , Florent Frémont , Keiichi Fukui , Paul Garde , Jérôme Gaudilliere , Pascal Gaudin , Alexis Giacomoni , David Gineste , Patrice Girard , Jean Claude Gomez , Chuck Goodman , Gerard-Philippe Grandjean , Philippe Guiglion , David Havell , Patrick Huth , Kachi Iwai , Marc-Etienne Julien , Rachel Knight , Ryuichi Kukita , Petri Kuossari , Jean-Michel Ladruze , Anis Ben Lassoued , Cédric Latgé , Jean-Marie Laugier , Matthieu Lauvernier , Patrice Le Guen , Jean-Charles Le Tarnec , Didier Lefoulon , Liouba Leroux , Niniane Leroux , Arnaud Leroy , Chelsey Logan , Yohann Lorand , Elisabeth Maris , Jean-Pierre Masini , Nicola Meneghelli , Laurent Millart , Eric Miny , Mike Mitchell , Baptiste Montoya , Fabrice Mortecrette , Anouchka Nardi , Antoine Ngo , Denis Nicolas , Raphael Nicollerat , Takaya Okada , Wataru Ono , George Patatoukas , Jacqueline Payet-Ayrault , Patrick Picard , Claude Porchel , Kanai Potts , Michel Quienen , Martial Relier , Fabien Richardot , Darren Rivett , Matthew Ryno , Fadi Saibi , Sophie Saibi , Christian Sartini , Hiromichi Sasaki , Philippe Seibert , Masao Shimizu , Lucas Sifoni , Georges Simard , Petri Tikkanen , Ian Transom , Bernard Tregon , Frank Tyrlik , Laurent Vadrot , Michel Veuillet , Christian Voirol , Stefan Will , Corine Yahia , Phil Yehle , Neil Yoblonsky , Wai-Chun Yue

Close eclipsing binary BD And: a triple system

BD And is a fairly bright (V = 10.8), active and close (P = 0.9258 days) eclipsing binary. The cyclic variability of the apparent orbital period as well as third light in the light curves indicate the presence of an additional late-type…

Solar and Stellar Astrophysics · Physics 2020-08-19 T. Pribulla , L. Hambalek , E. Guenther , R. Komzik , E. Kundra , J. Nedoroscik , V. Perdelwitz , M. Vanko

Updating quasar bolometric luminosity corrections. III. [O III] bolometric corrections

We present quasar bolometric corrections using the [O III] $\lambda5007$ narrow emission line luminosity based on the detailed spectral energy distributions of 53 bright quasars at low to moderate redshift ($0.0345<z<1.0002$). We adopted…

Astrophysics of Galaxies · Physics 2017-04-12 Alison Pennell , Jessie C. Runnoe , Michael Brotherton

Nearest Neighbor: The Low-Mass Milky Way Satellite Tucana III

We present Magellan/IMACS spectroscopy of the recently discovered Milky Way satellite Tucana III (Tuc III). We identify 26 member stars in Tuc III, from which we measure a mean radial velocity of v_hel = -102.3 +/- 0.4 (stat.) +/- 2.0…

Astrophysics of Galaxies · Physics 2020-02-24 J. D. Simon , T. S. Li , A. Drlica-Wagner , K. Bechtol , J. L. Marshall , D. J. James , M. Y. Wang , L. Strigari , E. Balbinot , K. Kuehn , A. R. Walker , T. M. C. Abbott , S. Allam , J. Annis , A. Benoit-Levy , D. Brooks , E. Buckley-Geer , D. L. Burke , A. Carnero Rosell , M. Carrasco Kind , J. Carretero , C. E. Cunha , C. B. D'Andrea , L. N. da Costa , D. L. DePoy , S. Desai , P. Doel , E. Fernandez , B. Flaugher , J. Frieman , J. Garcia-Bellido , E. Gaztanaga , D. A. Goldstein , D. Gruen , G. Gutierrez , N. Kuropatkin , M. A. G. Maia , P. Martini , F. Menanteau , C. J. Miller , R. Miquel , E. Neilsen , B. Nord , R. Ogando , A. A. Plazas , A. K. Romer , E. S. Rykoff , E. Sanchez , B. Santiago , V. Scarpine , M. Schubnell , I. Sevilla-Noarbe , R. C. Smith , F. Sobreira , E. Suchyta , M. E. C. Swanson , G. Tarle , L. Whiteway , B. Yanny

Strongly Blueshifted Phenomena Observed with {\it Hinode}/EIS in the 2006 December 13 Solar Flare

We present a detailed examination of strongly blueshifted emission lines observed with the EUV Imaging Spectrometer on board the {\it Hinode} satellite. We found two kinds of blueshifted phenomenon associated with the X3.4 flare that…

Astrophysics · Physics 2008-12-10 Ayumi Asai , Hirohisa Hara , Tetsuya Watanabe , Shinsuke Imada , Taro Sakao , Noriyuki Narukage , J. L. Culhane , G. A. Doschek

Palomar and Apache Point Spectrophotometry of Interstellar Comet 3I/ATLAS

On July 1st 2025 the third interstellar object, 3I/ATLAS or C/2025 N1 (ATLAS), was discovered, with an eccentricity of $e=6.15 \pm 0.01$ and perihelion of $q=1.357\pm0.001$ au. We report our initial visible to near-infrared (420-1000 nm)…

Earth and Planetary Astrophysics · Physics 2025-07-17 Matthew Belyakov , Christoffer Fremling , Matthew J. Graham , Bryce T. Bolin , Mukremin Kilic , Gracyn Jewett , Carey M. Lisse , Carl Ingebretsen , M. Ryleigh Davis , Ian Wong

PolarLight: a CubeSat X-ray Polarimeter based on the Gas Pixel Detector

The gas pixel detector (GPD) is designed and developed for high-sensitivity astronomical X-ray polarimetry, which is a new window about to open in a few years. Due to the small mass, low power, and compact geometry of the GPD, we propose a…

Instrumentation and Methods for Astrophysics · Physics 2019-04-10 Hua Feng , Weichun Jiang , Massimo Minuti , Qiong Wu , Aera Jung , Dongxin Yang , Saverio Citraro , Hikmat Nasimi , Jiandong Yu , Ge Jin , Jiahui Huang , Ming Zeng , Peng An , Luca Baldini , Ronaldo Bellazzini , Alessandro Brez , Luca Latronico , Carmelo Sgrò , Gloria Spandre , Michele Pinchera , Fabio Muleri , Paolo Soffitta , Enrico Costa

Extremely high polarization in 2010 outburst of blazar 3C 454.3

The gamma-ray-detected blazar 3C 454.3 exhibits dramatic flux and polarization variations in the optical and near-infrared bands. In December 2010, the object emitted a very bright outburst. We monitored it for approximately four years…

High Energy Astrophysical Phenomena · Physics 2015-06-18 Mahito Sasada , Makoto Uemura , Yasushi Fukazawa , Hajimu Yasuda , Ryosuke Itoh , Kiyoshi Sakimoto , Yuki Ikejiri , Michitoshi Yoshida , Koji S. Kawabata , Hiroshi Akitaya , Takashi Ohsugi , Masayuki Yamanaka , Tomoyuki Komatsu , Hisashi Miyamoto , Osamu Nagae , Hidehiko Nakaya , Hiroyuki Tanaka , Shuji Sato , Masaru Kino

Long-term photometric monitoring of the dwarf planet (136472) Makemake

We studied the rotational properties of the dwarf planet Makemake. The photometric observations were carried out at different telescopes between 2006 and 2017. Most of the measurements were acquired in BVRI broad-band filters of a standard…

Earth and Planetary Astrophysics · Physics 2019-04-09 T. A. Hromakina , I. N. Belskaya , Yu. N. Krugly , V. G. Shevchenko , J. L. Ortiz , P. Santos-Sanz , R. Duffard , N. Morales , A. Thirouin , R. Ya. Inasaridze , V. R. Ayvazian , V. T. Zhuzhunadze , D. Perna , V. V. Rumyantsev , I. V. Reva , A. V. Serebryanskiy , A. V. Sergeyev , I. E. Molotov , V. A. Voropaev , S. F. Velichko

SMARTS optical and infrared monitoring of 12 gamma-ray bright blazars

We present multiwavelength data for twelve blazars observed from 2008-2010 as part of an ongoing optical-infrared photometric monitoring project. Sources were selected to be bright, southern (dec < 20 deg) blazars observed by the Fermi…

High Energy Astrophysical Phenomena · Physics 2015-06-03 E. W. Bonning , C. M. Urry , C. Bailyn , M. Buxton , R. Chatterjee , P. Coppi , G. Fossati , J. Isler , L. Maraschi

Extreme Flaring of Starlink Satellites

Starlink satellites can become extremely bright when sunlight reflects specularly to an observer on the ground. The observed brightness of such flares is consistent with a bidirectional reflectance function of the Starlink satellite…

Instrumentation and Methods for Astrophysics · Physics 2024-05-24 Anthony Mallama , Richard E. Cole