IS PZ MON A RED DWARF OR A RED GIANT?
Hipparcos data (ESA 1997) give for PZ Mon a parallax π = 0.71 +- 1.17 mas that is not in agreement with earlier estimations of distance to the star of 15-30 ps and with its status of K- dwarf. There are presented spectra of PZ Mon in the region 3750-6150 Α with resolution of 7 ≈ Α, which were carrie...
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| Format: | Article |
| Language: | English |
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Odessa I. I. Mechnykov National University
2016-12-01
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| Series: | Odessa Astronomical Publications |
| Online Access: | http://oap.onu.edu.ua/article/view/86834 |
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doaj-1446601790ab42e794c93edd2c8cbe4d2020-11-25T03:01:43ZengOdessa I. I. Mechnykov National UniversityOdessa Astronomical Publications1810-42152016-12-01210171810.18524/1810-4215.2008.21.8683486834IS PZ MON A RED DWARF OR A RED GIANT?N. I. Bondar'0S. G. SergeevSRI "Crimean Astrophysical observatory" Nauchny, 98409, UkraineHipparcos data (ESA 1997) give for PZ Mon a parallax π = 0.71 +- 1.17 mas that is not in agreement with earlier estimations of distance to the star of 15-30 ps and with its status of K- dwarf. There are presented spectra of PZ Mon in the region 3750-6150 Α with resolution of 7 ≈ Α, which were carried out in the Nasmith focus of 2.6 m reflector in the Crimean Astrophysical observatory. Intensities of molecular absorptions in this spectral range are determined relative a nearby continuum and their relations between absolute magnitudes are considered. The calculated Mν =6.74 and r=29 ps correspond to an earlier classiffication of PZ Mon as a red dwarf.http://oap.onu.edu.ua/article/view/86834 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
N. I. Bondar' S. G. Sergeev |
| spellingShingle |
N. I. Bondar' S. G. Sergeev IS PZ MON A RED DWARF OR A RED GIANT? Odessa Astronomical Publications |
| author_facet |
N. I. Bondar' S. G. Sergeev |
| author_sort |
N. I. Bondar' |
| title |
IS PZ MON A RED DWARF OR A RED GIANT? |
| title_short |
IS PZ MON A RED DWARF OR A RED GIANT? |
| title_full |
IS PZ MON A RED DWARF OR A RED GIANT? |
| title_fullStr |
IS PZ MON A RED DWARF OR A RED GIANT? |
| title_full_unstemmed |
IS PZ MON A RED DWARF OR A RED GIANT? |
| title_sort |
is pz mon a red dwarf or a red giant? |
| publisher |
Odessa I. I. Mechnykov National University |
| series |
Odessa Astronomical Publications |
| issn |
1810-4215 |
| publishDate |
2016-12-01 |
| description |
Hipparcos data (ESA 1997) give for PZ Mon a parallax π = 0.71 +- 1.17 mas that is not in agreement with earlier estimations of distance to the star of 15-30 ps and with its status of K- dwarf. There are presented spectra of PZ Mon in the region 3750-6150 Α with resolution of 7 ≈ Α, which were carried out in the Nasmith focus of 2.6 m reflector in the Crimean Astrophysical observatory. Intensities of molecular absorptions in this spectral range are determined relative a nearby continuum and their relations between absolute magnitudes are considered. The calculated Mν =6.74 and r=29 ps correspond to an earlier classiffication of PZ Mon as a red dwarf. |
| url |
http://oap.onu.edu.ua/article/view/86834 |
| work_keys_str_mv |
AT nibondar ispzmonareddwarforaredgiant AT sgsergeev ispzmonareddwarforaredgiant |
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1724692400209657856 |