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.
Journal: 
Astronomy and Astrophysics
Refereed: 
Yes
Publication type: 
Article
Volume: 
625
Pages: 
A46
Abstract: 
<BR /> Aims: We studied the rotational properties of the dwarf planet Makemake. <BR /> 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. <BR /> 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 <A href='http://cdsarc.u-strasbg.fr'>http://cdsarc.u-strasbg.fr</A> (ftp://130.79.128.5) or via <A href='http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/625/A46'>http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/625/A46</A>
Database: 
ADS
SCOPUS
URL: 
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85071950967&doi=10.1051%2f0004-6361%2f201935274&partnerID=40&md5=7fb7614f550d6ff0dc75ee1e8995f53c
ADS Bibcode: 
2019A&A...625A..46H
Keywords: 
Kuiper belt objects: (136472) individual: Makemake;techniques: photometric;Astrophysics - Earth and Planetary Astrophysics