Two-Color VR CCD Photometry of Old Nova V603 Aquilae
Results of 6 nights of CCD VR photometry of the nova-like variable V603 Aquilae (Nova Aquilae 1918) obtained at the Mallorcian 35-cm telescope in July 2004 are reported. The ephemeris for the superhump maximum is Max.HJD=2453213.60546(96) +0.14813(10)E. The waves with 3.9d, 1.4d, 0.135d are statisti...
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| Format: | Article |
| Language: | English |
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The Korean Space Science Society
2005-09-01
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| Series: | Journal of Astronomy and Space Sciences |
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| Online Access: | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2005/v22n3/OJOOBS_2005_v22n3_211.pdf |
| _version_ | 1797368086200844288 |
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| author | Ivan L. Andronov Nataliya I. Ostrova Yonggi Kim V. Burwitz |
| author_facet | Ivan L. Andronov Nataliya I. Ostrova Yonggi Kim V. Burwitz |
| author_sort | Ivan L. Andronov |
| collection | DOAJ |
| description | Results of 6 nights of CCD VR photometry of the nova-like variable V603 Aquilae (Nova Aquilae 1918) obtained at the Mallorcian 35-cm telescope in July 2004 are reported. The ephemeris for the superhump maximum is Max.HJD=2453213.60546(96) +0.14813(10)E. The waves with 3.9d, 1.4d, 0.135d are statistically significant, which may be interpreted as the negative superhump-orbital, the beat periods (negative superhump - positive superhump) and the negative superhump with low amplitude, respectively. Another possible time-scale is 0.8d, which has no coincidence with the beat periods. Quasi-periodic oscillations with an effective period of 18 minutes have been detected, which are close to 15.6 minutes reported by some authors. Their effective semi-amplitudes are 0.045m and 0.051m for V and R, respectively. This corresponds to the 0.12 mag excess in the color index V-R as compared with the mean color, which can be understood as the pulsed emission in the hotter inner parts of the accretion disk, similar to that observed in TT Ari and MV Lyr. |
| first_indexed | 2024-03-08T17:27:27Z |
| format | Article |
| id | doaj.art-309a4df8c93f4f78be219612531dcf97 |
| institution | Directory Open Access Journal |
| issn | 2093-5587 2093-1409 |
| language | English |
| last_indexed | 2024-03-08T17:27:27Z |
| publishDate | 2005-09-01 |
| publisher | The Korean Space Science Society |
| record_format | Article |
| series | Journal of Astronomy and Space Sciences |
| spelling | doaj.art-309a4df8c93f4f78be219612531dcf972024-01-02T17:58:20ZengThe Korean Space Science SocietyJournal of Astronomy and Space Sciences2093-55872093-14092005-09-0122321122210.5140/JASS.2005.22.3.211Two-Color VR CCD Photometry of Old Nova V603 AquilaeIvan L. Andronov0Nataliya I. Ostrova1Yonggi Kim2V. Burwitz3Department of Astronomy and Astronomical Observatory, Odessa National University, UA 65014, Odessa, UkraineDepartment of Astronomy and Astronomical Observatory, Odessa National University, UA 65014, Odessa, UkraineUniversity Observatory, Chungbuk National University, Cheongju 361-763. KoreaMax-Plank-Instituet fur extraterrestrische Physik, D-85741 Garching, GermanyResults of 6 nights of CCD VR photometry of the nova-like variable V603 Aquilae (Nova Aquilae 1918) obtained at the Mallorcian 35-cm telescope in July 2004 are reported. The ephemeris for the superhump maximum is Max.HJD=2453213.60546(96) +0.14813(10)E. The waves with 3.9d, 1.4d, 0.135d are statistically significant, which may be interpreted as the negative superhump-orbital, the beat periods (negative superhump - positive superhump) and the negative superhump with low amplitude, respectively. Another possible time-scale is 0.8d, which has no coincidence with the beat periods. Quasi-periodic oscillations with an effective period of 18 minutes have been detected, which are close to 15.6 minutes reported by some authors. Their effective semi-amplitudes are 0.045m and 0.051m for V and R, respectively. This corresponds to the 0.12 mag excess in the color index V-R as compared with the mean color, which can be understood as the pulsed emission in the hotter inner parts of the accretion disk, similar to that observed in TT Ari and MV Lyr.http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2005/v22n3/OJOOBS_2005_v22n3_211.pdfvariable starscataclysmic variablesnovaeCCD photometryV603 Aql. |
| spellingShingle | Ivan L. Andronov Nataliya I. Ostrova Yonggi Kim V. Burwitz Two-Color VR CCD Photometry of Old Nova V603 Aquilae Journal of Astronomy and Space Sciences variable stars cataclysmic variables novae CCD photometry V603 Aql. |
| title | Two-Color VR CCD Photometry of Old Nova V603 Aquilae |
| title_full | Two-Color VR CCD Photometry of Old Nova V603 Aquilae |
| title_fullStr | Two-Color VR CCD Photometry of Old Nova V603 Aquilae |
| title_full_unstemmed | Two-Color VR CCD Photometry of Old Nova V603 Aquilae |
| title_short | Two-Color VR CCD Photometry of Old Nova V603 Aquilae |
| title_sort | two color vr ccd photometry of old nova v603 aquilae |
| topic | variable stars cataclysmic variables novae CCD photometry V603 Aql. |
| url | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2005/v22n3/OJOOBS_2005_v22n3_211.pdf |
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