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

DOI: 
10.1051/0004-6361/201935274
Publication date : 
01/05/2019
Main author: 
Hromakina, T. A.
IAA authors: 
Ortiz, J. L.; Santos-Sanz, P.; Duffard, R.; Morales, N.
Authors: 
Hromakina, T. A.; Belskaya, I. N.; Krugly, Yu. N.; Shevchenko, V. G.; Ortiz, J. L.; Santos-Sanz, P.; Duffard, R.; Morales, N.; Thirouin, A.; Inasaridze, R. Ya.; Ayvazian, V. R.; Zhuzhunadze, V. T.; Perna, D.; Rumyantsev, V. V.; Reva, I. V.; Serebryanskiy, A. V.; Sergeyev, A. V.; Molotov, I. E.; Voropaev, V. A.; Velichko, S. F.
Refereed: 
Yes
Publication type: 
Article
Volume: 
625
Pages: 
7 pp.
Number: 
id.A46
Abstract: 
Aims: We studied the rotational properties of the dwarf planet Makemake. Methods: 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 Johnson-Cousins photometric system. Results: We found that Makemake rotates more slowly than was previously reported. A possible lightcurve asymmetry suggests a double-peaked period of P = 22.8266 ± 0.0001 h. A small peak-to-peak lightcurve amplitude in R-filter A = 0.032 ± 0.005 mag implies an almost spherical shape or near pole-on orientation. We also measured BVRI colours and the R-filter phase-angle slope and revised the absolute magnitudes. The absolute magnitude of Makemake has remained unchanged since its discovery in 2005. No direct evidence of a newly discovered satellite was found in our photometric data; however, we discuss the possible existence of another larger satellite. Table A.1 is only available at the CDS via anonymous ftp to http://cdsarc.u-strasbg.fr (ftp://130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/625/A46
Database: 
ADS
URL: 
https://ui.adsabs.harvard.edu/abs/2019A%26A...625A..46H/abstract
ADS Bibcode: 
2019A&A...625A..46H
Keywords: 
Kuiper belt objects: (136472) individual: Makemake; techniques: photometric; Astrophysics - Earth and Planetary Astrophysics