Fast Optical Photometry of Galaxies: Observations of Short-Lived Flare Events
We have monitored two bright galaxies, M85 and NGC7331, on timescales as short as 0.01s. In the optical, we discovered an unusual burst coincident with the galaxy M85. We registered a sudden onset with a characteristic time of less than 10ms with subsequent quasi-exponential decay within approximate...
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| creator | Zhilyaev, B. E Romanyuk, Ya. O Verlyuk, I. A Svyatogorov, O. A Petrov, M. I Lovkaya, M. N |
| description | We have monitored two bright galaxies, M85 and NGC7331, on timescales as
short as 0.01s. In the optical, we discovered an unusual burst coincident with
the galaxy M85. We registered a sudden onset with a characteristic time of less
than 10ms with subsequent quasi-exponential decay within approximately 1s and
an amplitude of 2.5mag in the V-band. In the course of high-speed monitoring
with two Crimean telescopes operated synchronously, in both independent
instruments we have registered one coincident event occurring in NGC7331 with a
duration of ~0.6s. The amplitudes range from ~3mag to ~0.3mag in the U-band and
I-band, respectively. Merging of an intermediate-mass black hole with a small
black hole or normal star seems to be the most plausible mechanism responsible
for short bursts. Our observations support the hypothesis concerning the
existence of intermediate-mass black holes in the centers of galaxies and in
dense globular clusters. |
| doi_str_mv | 10.48550/arxiv.astro-ph/0509046 |
| format | Article |
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short as 0.01s. In the optical, we discovered an unusual burst coincident with
the galaxy M85. We registered a sudden onset with a characteristic time of less
than 10ms with subsequent quasi-exponential decay within approximately 1s and
an amplitude of 2.5mag in the V-band. In the course of high-speed monitoring
with two Crimean telescopes operated synchronously, in both independent
instruments we have registered one coincident event occurring in NGC7331 with a
duration of ~0.6s. The amplitudes range from ~3mag to ~0.3mag in the U-band and
I-band, respectively. Merging of an intermediate-mass black hole with a small
black hole or normal star seems to be the most plausible mechanism responsible
for short bursts. Our observations support the hypothesis concerning the
existence of intermediate-mass black holes in the centers of galaxies and in
dense globular clusters.</description><identifier>DOI: 10.48550/arxiv.astro-ph/0509046</identifier><language>eng</language><subject>Physics - Astrophysics of Galaxies ; Physics - Cosmology and Nongalactic Astrophysics ; Physics - Earth and Planetary Astrophysics ; Physics - High Energy Astrophysical Phenomena ; Physics - Instrumentation and Methods for Astrophysics ; Physics - Solar and Stellar Astrophysics</subject><creationdate>2005-09</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,776,881</link.rule.ids><linktorsrc>$$Uhttps://arxiv.org/abs/astro-ph/0509046$$EView_record_in_Cornell_University$$FView_record_in_$$GCornell_University$$Hfree_for_read</linktorsrc><backlink>$$Uhttps://doi.org/10.48550/arXiv.astro-ph/0509046$$DView paper in arXiv$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhilyaev, B. E</creatorcontrib><creatorcontrib>Romanyuk, Ya. O</creatorcontrib><creatorcontrib>Verlyuk, I. A</creatorcontrib><creatorcontrib>Svyatogorov, O. A</creatorcontrib><creatorcontrib>Petrov, M. I</creatorcontrib><creatorcontrib>Lovkaya, M. N</creatorcontrib><title>Fast Optical Photometry of Galaxies: Observations of Short-Lived Flare Events</title><description>We have monitored two bright galaxies, M85 and NGC7331, on timescales as
short as 0.01s. In the optical, we discovered an unusual burst coincident with
the galaxy M85. We registered a sudden onset with a characteristic time of less
than 10ms with subsequent quasi-exponential decay within approximately 1s and
an amplitude of 2.5mag in the V-band. In the course of high-speed monitoring
with two Crimean telescopes operated synchronously, in both independent
instruments we have registered one coincident event occurring in NGC7331 with a
duration of ~0.6s. The amplitudes range from ~3mag to ~0.3mag in the U-band and
I-band, respectively. Merging of an intermediate-mass black hole with a small
black hole or normal star seems to be the most plausible mechanism responsible
for short bursts. Our observations support the hypothesis concerning the
existence of intermediate-mass black holes in the centers of galaxies and in
dense globular clusters.</description><subject>Physics - Astrophysics of Galaxies</subject><subject>Physics - Cosmology and Nongalactic Astrophysics</subject><subject>Physics - Earth and Planetary Astrophysics</subject><subject>Physics - High Energy Astrophysical Phenomena</subject><subject>Physics - Instrumentation and Methods for Astrophysics</subject><subject>Physics - Solar and Stellar Astrophysics</subject><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>GOX</sourceid><recordid>eNotzzFrwzAUBGAtHUra31AtHZ3Ilixb3UqI04KDC-lunuQnLHAiIwmT_Pu2aaaDOzj4CHnJ2VrUZck2EC5uWUNMwWfzuGElU0zIR3JofjvazckZmOjX6JM_YQpX6i3dwwQXh_GNdjpiWCA5f45_y3H0IWWtW3CgzQQB6W7Bc4pP5MHCFPH5nitybHbf24-s7faf2_c2g0rJrBA1VooNlTLSVMhLzXO0A0qRG8ax1FIIm1utuSjqgjGrLQfDKg1S1cD5irz-v95Q_RzcCcK1v-H6eezvOP4DUZNN8Q</recordid><startdate>20050902</startdate><enddate>20050902</enddate><creator>Zhilyaev, B. E</creator><creator>Romanyuk, Ya. O</creator><creator>Verlyuk, I. A</creator><creator>Svyatogorov, O. A</creator><creator>Petrov, M. I</creator><creator>Lovkaya, M. N</creator><scope>GOX</scope></search><sort><creationdate>20050902</creationdate><title>Fast Optical Photometry of Galaxies: Observations of Short-Lived Flare Events</title><author>Zhilyaev, B. E ; Romanyuk, Ya. O ; Verlyuk, I. A ; Svyatogorov, O. A ; Petrov, M. I ; Lovkaya, M. N</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a796-248e790d79c6c7e35b31efde641c03e5b644f1fbb3428200fbf3ac07ba698a33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Physics - Astrophysics of Galaxies</topic><topic>Physics - Cosmology and Nongalactic Astrophysics</topic><topic>Physics - Earth and Planetary Astrophysics</topic><topic>Physics - High Energy Astrophysical Phenomena</topic><topic>Physics - Instrumentation and Methods for Astrophysics</topic><topic>Physics - Solar and Stellar Astrophysics</topic><toplevel>online_resources</toplevel><creatorcontrib>Zhilyaev, B. E</creatorcontrib><creatorcontrib>Romanyuk, Ya. O</creatorcontrib><creatorcontrib>Verlyuk, I. A</creatorcontrib><creatorcontrib>Svyatogorov, O. A</creatorcontrib><creatorcontrib>Petrov, M. I</creatorcontrib><creatorcontrib>Lovkaya, M. N</creatorcontrib><collection>arXiv.org</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Zhilyaev, B. E</au><au>Romanyuk, Ya. O</au><au>Verlyuk, I. A</au><au>Svyatogorov, O. A</au><au>Petrov, M. I</au><au>Lovkaya, M. N</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Fast Optical Photometry of Galaxies: Observations of Short-Lived Flare Events</atitle><date>2005-09-02</date><risdate>2005</risdate><abstract>We have monitored two bright galaxies, M85 and NGC7331, on timescales as
short as 0.01s. In the optical, we discovered an unusual burst coincident with
the galaxy M85. We registered a sudden onset with a characteristic time of less
than 10ms with subsequent quasi-exponential decay within approximately 1s and
an amplitude of 2.5mag in the V-band. In the course of high-speed monitoring
with two Crimean telescopes operated synchronously, in both independent
instruments we have registered one coincident event occurring in NGC7331 with a
duration of ~0.6s. The amplitudes range from ~3mag to ~0.3mag in the U-band and
I-band, respectively. Merging of an intermediate-mass black hole with a small
black hole or normal star seems to be the most plausible mechanism responsible
for short bursts. Our observations support the hypothesis concerning the
existence of intermediate-mass black holes in the centers of galaxies and in
dense globular clusters.</abstract><doi>10.48550/arxiv.astro-ph/0509046</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Physics - Astrophysics of Galaxies Physics - Cosmology and Nongalactic Astrophysics Physics - Earth and Planetary Astrophysics Physics - High Energy Astrophysical Phenomena Physics - Instrumentation and Methods for Astrophysics Physics - Solar and Stellar Astrophysics |
| title | Fast Optical Photometry of Galaxies: Observations of Short-Lived Flare Events |
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