2018 August 15 stellar occultation by minor planet (134340) Pluto

被引：2

作者：

Silva-Cabrera, Jose Sergio ^{[1
]}

Castro-Chacon, Joel Humberto ^{[1
]}

Reyes-Ruiz, Mauricio ^{[2
]}

Lehner, Matthew J. ^{[3
,4
,5
]}

Guerrero, Carlos Alberto ^{[2
]}

Huang, Chung-Kai ^{[6
]}

Alvarez-Santana, Fernando Ivan

Chang, Yin-Chang ^{[3
]}

Ling, Hung-Hsu ^{[3
]}

Porras-Navarro, Issac ^{[7
]}

Hernandez-Aguila, Joannes Bosco

Perez-Arce, Rosa L. ^{[8
]}

Rojas-Quintero, Juan Antonio ^{[9
]}

Avila, Remy ^{[10
]}

Wang, Shiang-Yu ^{[3
]}

Alcock, Charles

Chen, Wen-Ping

Granados Contreras, Agueda Paula

Cook, Kem H. ^{[3
]}

Geary, John C.

Hernandez-Valencia, Benajmin

Kavelaars, J. J. ^{[11
,12
]}

Norton, Timothy

Sanchez, Edilberto

Szentgyorgyi, Andrew ^{[5
]}

Yen, Wei-Ling ^{[3
]}

Zhang, Zhi-Wei ^{[3
]}

机构：

[1] Univ Nacl Autonoma Mexico, Inst Astron, CONACYT, AP 106, Ensenada 22800, Baja California, Mexico

[2] Univ Nacl Autonoma Mexico, Inst Astron, AP 106, Ensenada 22800, Baja California, Mexico

[3] NTU, Acad Sinica Inst Astron & Astrophys, 11F AS,Astron Math Bldg,1,Sect 4,Roosevelt Rd, Taipei 10617, Taiwan

[4] Univ Penn, Dept Phys & Astron, 209 South 33rd St, Philadelphia, PA 19125 USA

[5] Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA

[6] Natl Cent Univ, Inst Astron, 300 Jhongda Rd, Jhongli 32054, Taiwan

[7] Tecnol Costa Rica, Calle 15,Ave 14,1 Km Basilica Angeles, Cartago 1597050, Costa Rica

[8] Ctr Invest Cient & Educ Super Ensenada, Ensenada 22860, Baja California, Mexico

[9] CONACYT, Tecnol Nacl Mexico, IT Ensenada,Blvd Tecnol 150,Ex Ejido Chapultepec, Ensenada 22780, Baja California, Mexico

[10] Univ Nacl Autonoma Mexico, Ctr Fis Aplicada & Tecnol Avanzada, Campus UNAM,Juriquilla Blvd Juriquilla 3001, Santiago de Queretaro 76230, Qro, Mexico

[11] Natl Res Council Canada, Herzberg Astron & Astrophys Res Ctr, 5071 West Saanich Rd, Victoria, BC V9E 2E7, Canada

[12] Univ Victoria, Dept Phys & Astron, Elliott Bldg,3800 Finnerty Rd, Victoria, BC V8P 5C2, Canada

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2022年 / 511卷 / 04期

关键词：

methods: observational; techniques: photometric; minor planets; asteroids:; individual:; Pluto; ATMOSPHERE; WAVES;

D O I：

10.1093/mnras/stac401

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present photometric light curves of the stellar occultation event of the star UCAC4 341-187633 on 2018 August 15 by the minor planet (134340) Pluto. Photometric observations were carried out using the 2.1-m telescope at the San Pedro Martir Observatory and the 1.3-m telescopes at Sites 2 and 3 of the Trans-Neptunian Automated Occultation Survey (TAOS II) project, and using a portable 0.4-m telescope from Bahia Asuncion, Baja California Sur, Mexico. Different filters were used with the 2.1-m telescope and the TAOS II telescopes, whilst observations with the portable system were performed with no filter. The resulting light curves from the San Pedro Martir Observatory show clear structures, with at least two bright spikes observed on ingress and one more observed on egress as the star traverses the atmosphere of the dwarf planet. The light curve from the portable telescope (440 km away) measured a longer duration for the occultation event, because the shadow of Pluto was observed at a lower latitude. Normalized light curves were created for the 2.1-m telescope, the Site 3 telescope of the TAOS II and the portable telescope. These normalized light curves show a difference in amplitude.

引用

页码：5550 / 5559

页数：10

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