OVERTONE AND MULTI-MODE RR LYRAE STARS IN THE GLOBULAR CLUSTER M3
The overtone and multi-mode RR Lyrae stars in the globular cluster M3 are studied using a 200 day long, B, V, and I[subscript C] time-series photometry obtained in 2012. 70% of the 52 overtone variables observed show some kind of multi-periodicity (with additional frequency at f[subscript 0.61] = f[...
| Main Authors: | , , , , , , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
2015
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| Online Access: | http://hdl.handle.net/1721.1/100032 |
| _version_ | 1826204394978279424 |
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| author | Jurcsik, J. Smitola, P. Hajdu, G. Nuspl, J. Kolenberg, K. Kun, E. Bakos, J. Kelemen, J. Kriskovics, L. Szalai, T. Szing, A. Vida, K. Furesz, Gabor Sodor, A. Moor, A. Pal, A. Kovacs, T. Sarneczky, K. |
| author2 | MIT Kavli Institute for Astrophysics and Space Research |
| author_facet | MIT Kavli Institute for Astrophysics and Space Research Jurcsik, J. Smitola, P. Hajdu, G. Nuspl, J. Kolenberg, K. Kun, E. Bakos, J. Kelemen, J. Kriskovics, L. Szalai, T. Szing, A. Vida, K. Furesz, Gabor Sodor, A. Moor, A. Pal, A. Kovacs, T. Sarneczky, K. |
| author_sort | Jurcsik, J. |
| collection | MIT |
| description | The overtone and multi-mode RR Lyrae stars in the globular cluster M3 are studied using a 200 day long, B, V, and I[subscript C] time-series photometry obtained in 2012. 70% of the 52 overtone variables observed show some kind of multi-periodicity (with additional frequency at f[subscript 0.61] = f[subscript 1O/[superscript 0.61] frequency ratio, Blazhko effect, double/multi-mode pulsation, and period doubling). A signal at the 0.587 frequency ratio to the fundamental-mode frequency is detected in the double-mode star, V13, which may be identified as the second radial overtone mode. If this mode identification is correct, than V13 is the first RR Lyrae star showing triple-mode pulsation of the first three radial modes. Either the Blazhko effect or the f[subscript 0.61]$ frequency (or both of these phenomena) appears in seven double-mode stars. The P[subscript 1O/P[subscript F] period ratio of RRd stars showing the Blazhko effect are anomalous. A displacement of the main frequency component at the fundamental mode with the value of modulation frequency (or its half), is detected in three Blazhko RRd stars that are parallel with the appearance of the overtone-mode pulsation. The f[subscript 0.61] frequency appears in RRc stars that lie at the blue side of the double-mode region and in RRd stars, raising the suspicion that its occurrence may be connected to double-mode pulsation. The changes of the Blazhko and double-mode properties of the stars are also reviewed using the recent and archive photometric data. |
| first_indexed | 2024-09-23T12:54:23Z |
| format | Article |
| id | mit-1721.1/100032 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:54:23Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | mit-1721.1/1000322022-10-01T11:49:06Z OVERTONE AND MULTI-MODE RR LYRAE STARS IN THE GLOBULAR CLUSTER M3 Jurcsik, J. Smitola, P. Hajdu, G. Nuspl, J. Kolenberg, K. Kun, E. Bakos, J. Kelemen, J. Kriskovics, L. Szalai, T. Szing, A. Vida, K. Furesz, Gabor Sodor, A. Moor, A. Pal, A. Kovacs, T. Sarneczky, K. MIT Kavli Institute for Astrophysics and Space Research Furesz, Gabor The overtone and multi-mode RR Lyrae stars in the globular cluster M3 are studied using a 200 day long, B, V, and I[subscript C] time-series photometry obtained in 2012. 70% of the 52 overtone variables observed show some kind of multi-periodicity (with additional frequency at f[subscript 0.61] = f[subscript 1O/[superscript 0.61] frequency ratio, Blazhko effect, double/multi-mode pulsation, and period doubling). A signal at the 0.587 frequency ratio to the fundamental-mode frequency is detected in the double-mode star, V13, which may be identified as the second radial overtone mode. If this mode identification is correct, than V13 is the first RR Lyrae star showing triple-mode pulsation of the first three radial modes. Either the Blazhko effect or the f[subscript 0.61]$ frequency (or both of these phenomena) appears in seven double-mode stars. The P[subscript 1O/P[subscript F] period ratio of RRd stars showing the Blazhko effect are anomalous. A displacement of the main frequency component at the fundamental mode with the value of modulation frequency (or its half), is detected in three Blazhko RRd stars that are parallel with the appearance of the overtone-mode pulsation. The f[subscript 0.61] frequency appears in RRc stars that lie at the blue side of the double-mode region and in RRd stars, raising the suspicion that its occurrence may be connected to double-mode pulsation. The changes of the Blazhko and double-mode properties of the stars are also reviewed using the recent and archive photometric data. 2015-11-24T18:00:49Z 2015-11-24T18:00:49Z 2015-08 2015-03 Article http://purl.org/eprint/type/JournalArticle 1538-4365 0067-0049 http://hdl.handle.net/1721.1/100032 Jurcsik, J., P. Smitola, G. Hajdu, A. Sodor, J. Nuspl, K. Kolenberg, G. Furesz, et al. “OVERTONE AND MULTI-MODE RR LYRAE STARS IN THE GLOBULAR CLUSTER M3.” The Astrophysical Journal Supplement Series 219, no. 2 (August 1, 2015): 25. © 2015 The American Astronomical Society en_US http://dx.doi.org/10.1088/0067-0049/219/2/25 The Astrophysical Journal Supplement Series Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf IOP Publishing |
| spellingShingle | Jurcsik, J. Smitola, P. Hajdu, G. Nuspl, J. Kolenberg, K. Kun, E. Bakos, J. Kelemen, J. Kriskovics, L. Szalai, T. Szing, A. Vida, K. Furesz, Gabor Sodor, A. Moor, A. Pal, A. Kovacs, T. Sarneczky, K. OVERTONE AND MULTI-MODE RR LYRAE STARS IN THE GLOBULAR CLUSTER M3 |
| title | OVERTONE AND MULTI-MODE RR LYRAE STARS IN THE GLOBULAR CLUSTER M3 |
| title_full | OVERTONE AND MULTI-MODE RR LYRAE STARS IN THE GLOBULAR CLUSTER M3 |
| title_fullStr | OVERTONE AND MULTI-MODE RR LYRAE STARS IN THE GLOBULAR CLUSTER M3 |
| title_full_unstemmed | OVERTONE AND MULTI-MODE RR LYRAE STARS IN THE GLOBULAR CLUSTER M3 |
| title_short | OVERTONE AND MULTI-MODE RR LYRAE STARS IN THE GLOBULAR CLUSTER M3 |
| title_sort | overtone and multi mode rr lyrae stars in the globular cluster m3 |
| url | http://hdl.handle.net/1721.1/100032 |
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