Exploring the Central Region of NGC 1365 in the Ultraviolet Domain
- Title
- Exploring the Central Region of NGC 1365 in the Ultraviolet Domain
- Creator
- Kurian K.S.; Stalin C.S.; Wylezalek D.; Lyubenova M.; Adhikari T.P.; Devaraj A.; Sagar R.; Kissler-Patig M.; Mondal S.
- Description
- Active galactic nuclei (AGN) feedback and its impact on their host galaxies are critical to our understanding of galaxy evolution. Here, we present a combined analysis of new high resolution ultraviolet (UV) data from the Ultraviolet Imaging Telescope (UVIT) on AstroSat and archival optical spectroscopic data from the Very Large Telescope/MUSE, for the Seyfert galaxy, NGC 1365. Concentrating on the central 5 kpc region, the UVIT images in the far- and near-UV show bright star-forming knots in the circumnuclear ring as well as a faint central source. After correcting for extinction, we found the star formation rate (SFR) surface density of the circumnuclear 2 kpc ring to be similar to other starbursts, despite the presence of an AGN outflow, as seen in [O iii] 5007 On the other hand, we found fainter UV and thus lower SFR in the direction southeast of the AGN relative to northwest in agreement with observations at other wavelengths from JWST and Atacama Large Millimeter/submillimeter Array. The AGN outflow velocity is found to be lesser than the escape velocity, suggesting that the outflowing gas will rain back into the galaxy. The deep UV data have also revealed diffuse UV emission in the direction of the AGN outflow. By combining [O iii] and UV data, we found the diffuse emission to be of AGN origin. 2024. The Author(s). Published by the American Astronomical Society.
- Source
- Astrophysical Journal, Vol-974, No. 1
- Date
- 2024-01-01
- Publisher
- Institute of Physics
- Coverage
- Kurian K.S., Indian Institute of Astrophysics, Koramangala, Block II, Bangalore, 560034, India, Pondicherry University, Puducherry, Kalapet, 605014, India; Stalin C.S., Indian Institute of Astrophysics, Koramangala, Block II, Bangalore, 560034, India; Wylezalek D., Astronomisches Rechen-Institut, Zentrum fur Astronomie der Universitat Heidelberg, Monchhofstr. 12-14, Heidelberg, 69120, Germany; Lyubenova M., European Southern Observatory, Karl-Schwarzschild-Str. 2, Garching bei Mchen, 85748, Germany; Adhikari T.P., CAS Key Laboratory for Research in Galaxies and Cosmology, Department of Astronomy, University of Science and Technology of China, Anhui, Hefei, 230026, China, School of Astronomy and Space Science, University of Science and Technology of China, Anhui, Hefei, 230026, China; Devaraj A., Department of Physics and Electronics, CHRIST (Deemed to be University), Bangalore, 560029, India; Sagar R., Indian Institute of Astrophysics, Koramangala, Block II, Bangalore, 560034, India; Kissler-Patig M., ESAESACEuropean Space Agency, Camino Bajo del Castillo s/n, Villafranca del Castillo, Madrid, 28692, Spain; Mondal S., Indian Institute of Astrophysics, Koramangala, Block II, Bangalore, 560034, India
- Rights
- All Open Access; Gold Open Access
- Relation
- ISSN: 0004637X
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Kurian K.S.; Stalin C.S.; Wylezalek D.; Lyubenova M.; Adhikari T.P.; Devaraj A.; Sagar R.; Kissler-Patig M.; Mondal S., “Exploring the Central Region of NGC 1365 in the Ultraviolet Domain,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 25, 2025, https://archives.christuniversity.in/items/show/12824.