Intra-night optical variability characteristics of different classes of narrow-line Seyfert 1 galaxies

被引：25

作者：

Kshama, S. K. ^{[1
]}

Paliya, Vaidehi S. ^{[2
]}

Stalin, C. S. ^{[1
]}

机构：

[1] Indian Inst Astrophys, Block 2, Bangalore 560034, Karnataka, India

[2] Clemson Univ, Dept Phys & Astron, 118 Kinard Lab, Clemson, SC 29634 USA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2017年 / 466卷 / 03期

关键词：

surveys; galaxies: active; galaxies: jets; galaxies: photometry; galaxies: Seyfert; ACTIVE GALACTIC NUCLEI; GAMMA-RAY-LOUD; BL LACERTAE OBJECTS; BLACK-HOLE MASS; DIGITAL SKY SURVEY; RADIO-LOUD; PMN J0948+0022; LIGHT CURVES; EXTRAGALACTIC SOURCES; QUASAR SURVEY;

D O I：

10.1093/mnras/stw3317

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In a first systematic effort to characterize the intra-night optical variability (INOV) of different classes of narrow-line Seyfert 1 (NLSy1) Galaxies, we have carried out observations on a sample of radio-loud (RL) and radio-quiet (RQ) NLSy1 galaxies. The RL-NLSy1 galaxies are further divided into gamma-ray loud (GL) and gamma-ray quiet (GQ) NLSy1 galaxies. Our sample consists of four sets, each set consisting of a RQ-NLSy1, a GQ-NLSy1 and a GL-NLSy1 galaxy, closely matched in redshift and optical luminosity. Our observations on both RQ-and GQ-NLSy1 galaxies consist of a total of 19 nights, whereas the data for GL-NLSy1 galaxies (18 nights) were taken from the literature published earlier by us. This enabled us to do a comparison of the duty cycle (DC) of different classes of NLSy1 galaxies. Using powerenhanced F-test, with a variability threshold of 1 per cent, we find DCs of about 55 per cent, 39 per cent and 0 per cent for GL-, GQ-and RQ-NLSy1 galaxies, respectively. The high DC and large amplitude of INOV (24.0 +/- 13.7 per cent) shown by GL-NLSy1 galaxies relative to the other two classes might be due to their inner aligned relativistic jets having large bulk Lorentz factors. The null DC of RQ-NLSy1 galaxies could mean the presence of low power and/or largely misaligned jets in them. However, dividing RL-NLSy1 galaxies into low and high optical polarization sources, we find that sources with large polarization show somewhat higher DCs (69 per cent) and amplitudes (29 per cent) compared to those with low polarization. This points to a possible link between INOV and optical polarization.

引用

页码：2679 / 2689

页数：11

共 74 条

[1] GAMMA-RAY LIGHT CURVES AND VARIABILITY OF BRIGHT FERMI-DETECTED BLAZARS [J].

Abdo, A. A. ;

Ackermann, M. ;

Ajello, M. ;

Antolini, E. ;

Baldini, L. ;

Ballet, J. ;

Barbiellini, G. ;

Bastieri, D. ;

Bechtol, K. ;

Bellazzini, R. ;

Berenji, B. ;

Blandford, R. D. ;

Bloom, E. D. ;

Bonamente, E. ;

Borgland, A. W. ;

Bouvier, A. ;

Bregeon, J. ;

Brez, A. ;

Brigida, M. ;

Bruel, P. ;

Buehler, R. ;

Burnett, T. H. ;

Buson, S. ;

Caliandro, G. A. ;

Cameron, R. A. ;

Caraveo, P. A. ;

Carrigan, S. ;

Casandjian, J. M. ;

Cavazzuti, E. ;

Cecchi, C. ;

Celik, Oe. ;

Chekhtman, A. ;

Cheung, C. C. ;

Chiang, J. ;

Ciprini, S. ;

Claus, R. ;

Cohen-Tanugi, J. ;

Cominsky, L. R. ;

Conrad, J. ;

Costamante, L. ;

Cutini, S. ;

Dermer, C. D. ;

de Angelis, A. ;

de Palma, F. ;

do Couto e Silva, E. ;

Drell, P. S. ;

Dubois, R. ;

Dumora, D. ;

Farnier, C. ;

Favuzzi, C. .

ASTROPHYSICAL JOURNAL, 2010, 722 (01) :520-542

[2] RADIO-LOUD NARROW-LINE SEYFERT 1 AS A NEW CLASS OF GAMMA-RAY ACTIVE GALACTIC NUCLEI [J].

Abdo, A. A. ;

Ackermann, M. ;

Ajello, M. ;

Baldini, L. ;

Ballet, J. ;

Barbiellini, G. ;

Bastieri, D. ;

Bechtol, K. ;

Bellazzini, R. ;

Berenji, B. ;

Bloom, E. D. ;

Bonamente, E. ;

Borgland, A. W. ;

Bregeon, J. ;

Brez, A. ;

Brigida, M. ;

Bruel, P. ;

Burnett, T. H. ;

Caliandro, G. A. ;

Cameron, R. A. ;

Caraveo, P. A. ;

Casandjian, J. M. ;

Cecchi, C. ;

Celik, O. ;

Chekhtman, A. ;

Cheung, C. C. ;

Chiang, J. ;

Ciprini, S. ;

Claus, R. ;

Cohen-Tanugi, J. ;

Conrad, J. ;

Cutini, S. ;

Dermer, C. D. ;

de Palma, F. ;

do Couto e Silva, E. ;

Drell, P. S. ;

Dubois, R. ;

Dumora, D. ;

Farnier, C. ;

Favuzzi, C. ;

Fegan, S. J. ;

Focke, W. B. ;

Foschini, L. ;

Frailis, M. ;

Fukazawa, Y. ;

Fusco, P. ;

Gargano, F. ;

Gehrels, N. ;

Germani, S. ;

Giebels, B. .

ASTROPHYSICAL JOURNAL LETTERS, 2009, 707 (02) :L142-L147

[3] FERMI/LARGE AREA TELESCOPE DISCOVERY OF GAMMA-RAY EMISSION FROM A RELATIVISTIC JET IN THE NARROW-LINE QUASAR PMN J0948+0022 [J].

Abdo, A. A. ;

Ackermann, M. ;

Ajello, M. ;

Axelsson, M. ;

Baldini, L. ;

Ballet, J. ;

Barbiellini, G. ;

Bastieri, D. ;

Battelino, M. ;

Baughman, B. M. ;

Bechtol, K. ;

Bellazzini, R. ;

Bloom, E. D. ;

Bonamente, E. ;

Borgland, A. W. ;

Bregeon, J. ;

Brez, A. ;

Brigida, M. ;

Bruel, P. ;

Caliandro, G. A. ;

Cameron, R. A. ;

Caraveo, P. A. ;

Casandjian, J. M. ;

Cavazzuti, E. ;

Cecchi, C. ;

Chekhtman, A. ;

Cheung, C. C. ;

Chiang, J. ;

Ciprini, S. ;

Claus, R. ;

Cohen-Tanugi, J. ;

Collmar, W. ;

Conrad, J. ;

Costamante, L. ;

Dermer, C. D. ;

de Angelis, A. ;

de Palma, F. ;

Digel, S. W. ;

do Couto e Silva, E. ;

Drell, P. S. ;

Dubois, R. ;

Dumora, D. ;

Farnier, C. ;

Favuzzi, C. ;

Focke, W. B. ;

Foschini, L. ;

Frailis, M. ;

Fuhrmann, L. ;

Fukazawa, Y. ;

Funk, S. .

ASTROPHYSICAL JOURNAL, 2009, 699 (02) :976-984

[4] MINUTE-TIMESCALE > 100 MeV γ-RAY VARIABILITY DURING THE GIANT OUTBURST OF QUASAR 3C 279 OBSERVED BY FERMI-LAT IN 2015 JUNE [J].

Ackermann, M. ;

Anantua, R. ;

Asano, K. ;

Baldini, L. ;

Barbiellini, G. ;

Bastieri, D. ;

Gonzalez, J. Becerra ;

Bellazzini, R. ;

Bissaldi, E. ;

Blandford, R. D. ;

Bloom, E. D. ;

Bonino, R. ;

Bottacini, E. ;

Bruel, P. ;

Buehler, R. ;

Caliandro, G. A. ;

Cameron, R. A. ;

Caragiulo, M. ;

Caraveo, P. A. ;

Cavazzuti, E. ;

Cecchi, C. ;

Cheung, C. C. ;

Chiang, J. ;

Chiaro, G. ;

Ciprini, S. ;

Cohen-Tanugi, J. ;

Costanza, F. ;

Cutini, S. ;

D'Ammando, F. ;

De Palma, F. ;

Desiante, R. ;

Digel, S. W. ;

Di Lalla, N. ;

Di Mauro, M. ;

Di Venere, L. ;

Drell, P. S. ;

Favuzzi, C. ;

Fegan, S. J. ;

Ferrara, E. C. ;

Fukazawa, Y. ;

Funk, S. ;

Fusco, P. ;

Gargano, F. ;

Gasparrini, D. ;

Giglietto, N. ;

Giordano, F. ;

Giroletti, M. ;

Grenier, I. A. ;

Guillemot, L. ;

Guiriec, S. .

ASTROPHYSICAL JOURNAL LETTERS, 2016, 824 (02)

[5] RoboPol: the optical polarization of gamma-ray-loud and gamma-ray-quiet blazars [J].

Angelakis, E. ;

Hovatta, T. ;

Blinov, D. ;

Pavlidou, V. ;

Kiehlmann, S. ;

Myserlis, I. ;

Bottcher, M. ;

Mao, P. ;

Panopoulou, G. V. ;

Liodakis, I. ;

King, O. G. ;

Balokovic, M. ;

Kus, A. ;

Kylafis, N. ;

Mahabal, A. ;

Marecki, A. ;

Paleologou, E. ;

Papadakis, I. ;

Papamastorakis, I. ;

Pazderski, E. ;

Pearson, T. J. ;

Prabhudesai, S. ;

Ramaprakash, A. N. ;

Readhead, A. C. S. ;

Reig, P. ;

Tassis, K. ;

Urry, M. ;

Zensus, J. A. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2016, 463 (03) :3365-3380

[6] Radio-loud Narrow Line Seyfert 1 under a different perspective: a revised black hole mass estimate from optical spectropolarimetry [J].

Baldi, Ranieri D. ;

Capetti, Alessandro ;

Robinson, Andrew ;

Laor, Ari ;

Behar, Ehud .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2016, 458 (01) :L69-L73

[7] THE FIRST SURVEY - FAINT IMAGES OF THE RADIO SKY AT 20 CENTIMETERS [J].

BECKER, RH ;

WHITE, RL ;

HELFAND, DJ .

ASTROPHYSICAL JOURNAL, 1995, 450 (02) :559-577

[8] The optically powerful quasar E1821+643 is associated with a 300 kiloparsec-scale FR I radio structure [J].

Blundell, KM ;

Rawlings, S .

ASTROPHYSICAL JOURNAL, 2001, 562 (01) :L5-L8

[9] Black hole mass and Eddington ratio as drivers for the observable properties of radio-loud and radio-quiet QSOs [J].

Boroson, TA .

ASTROPHYSICAL JOURNAL, 2002, 565 (01) :78-85

[10] Black hole mass estimate for a sample of radio-loud narrow-line Seyfert 1 galaxies [J].

Calderone, G. ;

Ghisellini, G. ;

Colpi, M. ;

Dotti, M. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2013, 431 (01) :210-239

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