Krumpe, M., Husemann, B., Tremblay, G. R., Urrutia, T., Powell, M., Davis, T. A., Scharwachter, J., Dexter, J., Busch, G., Combes, F., Croom, S. M., Eckart, A., McElroy, R. E., Perez-Torres, M. and Leung, G. (2017). The Close AGN Reference Survey (CARS) Mrk 1018 halts dimming and experiences strong short-term variability. Astron. Astrophys., 607. LES ULIS CEDEX A: EDP SCIENCES S A. ISSN 1432-0746

Full text not available from this repository.

Abstract

After changing optical AGN type from 1.9 to 1 in 1984, the AGN Mrk 1018 recently reverted back to its type 1.9 state. Our ongoing monitoring now reveals that the AGN has hatted its dramatic dimming, reaching a minimum around October 2016. The minimum was followed by an outburst rising with similar to 0.25 U-band mag/month. The rebrightening fasted at feast until February 2017, as confirmed by joint Chandra and Hubble observations. Monitoring was resumed in July 2017 after the source emerged from sunblock, at which point the AGN was found only similar to 0.4 mag brighter than its minimum. The intermittent outburst was accompanied by the appearance of a red wing asymmetry in broad-fine shape, indicative of an inhomogeneous broad-fine region. The current flickering brightness of Mrk 1018 following its rapid fading either suggests that the source has reignited, remains variabie at a tow level, or may continue dimming over the next few years. Distinguishing between these possibilities requires continuous multiwavelength monitoring.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Krumpe, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Husemann, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tremblay, G. R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Urrutia, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Powell, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Davis, T. A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Scharwachter, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Dexter, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Busch, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Combes, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Croom, S. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Eckart, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
McElroy, R. E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Perez-Torres, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Leung, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-210982
DOI: 10.1051/0004-6361/201731967
Journal or Publication Title: Astron. Astrophys.
Volume: 607
Date: 2017
Publisher: EDP SCIENCES S A
Place of Publication: LES ULIS CEDEX A
ISSN: 1432-0746
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
BLACK-HOLES; TIDAL DISRUPTION; GALAXIES; QUASARS; GASMultiple languages
Astronomy & AstrophysicsMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/21098

Downloads

Downloads per month over past year

Altmetric

Export

Actions (login required)

View Item View Item