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Related papers: A systematic search for hidden type 1 AGNs: gas ki…

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We search for misclassified type 1 AGNs among type 2 AGNs identified with emission line flux ratios, and investigate the properties of the sample. Using 4\,113 local type 2 AGNs at $0.02<z<0.05$ selected from Sloan Digital Sky Survey Data…

Astrophysics of Galaxies · Physics 2015-06-23 Jong-Hak Woo , Ji-Gang Kim , Daeseong Park , Hyun-Jin Bae , Jae-Hyuk Kim , Seung-Eun Lee , Sang Chul Kim , Hong-Jin Kwon

We present a systematic study of ionized gas outflows based on the velocity shift and dispersion of the [O III] {\lambda}5007 $\AA$ emission line, using a sample of ~ 5000 Type 1 AGNs at z < 0.3 selected from Sloan Digital Sky Survey. This…

Astrophysics of Galaxies · Physics 2018-09-26 Suvendu Rakshit , Jong-Hak Woo

We present the spatially resolved gas and stellar kinematics of a sample of ten hidden type 1 AGNs in order to investigate the true nature of the central source and the scaling relation with host galaxy stellar velocity dispersion. The…

Astrophysics of Galaxies · Physics 2020-12-02 Donghoon Son , Jong-Hak Woo , Da-In Eun , Hojin Cho , Marios Karouzos , Songyeon Park

We perform a census of ionized gas outflows using a sample of ~23,000 type 2 active galactic nuclei (AGNs) out to z~0.1. By measuring the velocity offset of narrow emission lines, i.e., [O III] {\lambda}5007 and H{\alpha}, with respect to…

Astrophysics of Galaxies · Physics 2014-10-14 Hyun-Jin Bae , Jong-Hak Woo

AGN-driven outflows are considered as one of the processes driving the co-evolution of supermassive black holes with their host galaxies. We present integral field spectroscopy of six Type 2 AGNs at z < 0.1, which are selected as AGNs…

Astrophysics of Galaxies · Physics 2019-04-03 Rongxin Luo , Jong-Hak Woo , Jaejin Shin , Daeun Kang , Hyun-Jin Bae , Marios Karouzos

To constrain the nature and fraction of the ionized gas outflows in AGNs, we perform a detailed analysis on gas kinematics as manifested by the velocity dispersion and shift of the [O III] {\lambda}5007 emission line, using a large sample…

Astrophysics of Galaxies · Physics 2016-02-03 Jong-Hak Woo , Hyun-Jin Bae , Donghoon Son , Marios Karouzos

We have newly identified a substantial number of type 1 active galactic nuclei (AGN) featuring weak broad-line regions (BLRs) at z < 0.2 from detailed analysis of galaxy spectra in the Sloan Digital Sky Survey Data Release 7. These objects…

Astrophysics of Galaxies · Physics 2015-07-15 Kyuseok Oh , Sukyoung K. Yi , Kevin Schawinski , Michael Koss , Benny Trakhtenbrot

Fast and energetic winds are invoked by galaxy formation models as essential processes in the evolution of galaxies. These outflows can be powered either by star-formation and/or AGN activity, but the relative dominance of the two…

Energetic ionized gas outflows driven by active galactic nuclei (AGN) have been studied as a key phenomenon related to AGN feedback. To probe the kinematics of the gas in the narrow line region, [O III] ${\lambda}$5007 has been utilized in…

Astrophysics of Galaxies · Physics 2017-08-22 Daeun Kang , Jong-Hak Woo , Hyun-Jin Bae

We present a detailed study of ionized outflows in a large sample of ~650 hard X-ray detected AGN. Using optical spectroscopy from the BAT AGN Spectroscopic Survey (BASS) we are able to reveal the faint wings of the [OIII] emission lines…

We present gas kinematics based on the [OIII] $\lambda$5007 line and their connection to galaxy gravitational potential, active galactic nucleus (AGN) energetics, and star formation, using a large sample of ~110,000 AGNs and star-forming…

Astrophysics of Galaxies · Physics 2017-05-03 Jong-Hak Woo , Donghoon Son , Hyun-Jin Bae

To investigate the connection between radio activity and AGN outflows, we present a study of ionized gas kinematics based on [O III] $\lambda$5007 emission line along the large-scale radio jet for six radio AGNs. These AGNs are selected…

Astrophysics of Galaxies · Physics 2017-12-20 Huynh Anh N. Le , Jong-Hak Woo , Donghoon Son , Marios Karouzos , Aeree Chung , Taehyun Jung , Evangelia Tremou

We present spatially resolved kinematic measurements of AGN-driven outflows in dwarf galaxies in the stellar mass range $\sim6\times10^8 - 9\times10^9 M_\odot$, selected from SDSS DR7,8 and followed up with Keck/LRIS spectroscopy. We find…

Astrophysics of Galaxies · Physics 2019-10-16 Christina Manzano-King , Gabriela Canalizo , Laura V. Sales

We present spatially resolved gas kinematics, ionization, and energetics of 11 type 1 and 5 type 2 active galactic nuclei (AGNs) with strong ionized gas outflows at z $<0.3$ using Gemini Multi-Object Spectrograph Integral Field Unit…

Astrophysics of Galaxies · Physics 2023-10-13 Changseok Kim , Jong-Hak Woo , Rongxin Luo , Aeree Chung , Junhyun Baek , Huynh Anh N. Le , Donghoon Son

We present a sample of 398 galaxies with ionized gas outflow signatures in their spectra from the Galaxy and Mass Assembly (GAMA) Survey Data Release 4, including 45 low-mass galaxies with stellar masses $M_*<10^{10}$ $M_\odot$. We assemble…

Astrophysics of Galaxies · Physics 2024-12-03 Sheyda Salehirad , Amy E. Reines , Mallory Molina

Energetic gas outflows driven by active galactic nuclei (AGNs) are considered as one of the mechanisms, by which supermassive black holes affect their host galaxies. To probe the impact of AGN-driven outflows, it is essential to quantify…

Astrophysics of Galaxies · Physics 2018-10-10 Daeun Kang , Jong-Hak Woo

We develop a novel method to identify active galactic nuclei (AGNs) and study the nature of low-luminosity AGNs in the Sloan Digital Sky Survey. This is the second part of a series of papers and we study the correlations between the AGN…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Masayuki Tanaka

To investigate AGN outflows as a tracer of AGN feedback on star-formation, we perform integral-field spectroscopy of 20 type 2 AGNs at z<0.1, which are luminous AGNs with the [O III] luminosity >10$^{41.5}$ erg/s, and exhibit strong outflow…

Astrophysics of Galaxies · Physics 2017-03-15 Hyun-Jin Bae , Jong-Hak Woo , Marios Karouzos , Elena Gallo , Helene Flohic , Yue Shen , Suk-Jin Yoon

AGN-driven outflows are invoked by galaxy evolutionary models to quench star formation and to explain the origin of the relations observed locally between super massive black holes and their host galaxies. This work aims to detect the…

We present observations of 17 luminous (log(L[O III]/L_Sun) > 8.7) local (z < 0.11) type II AGN. Our aim is to investigate the prevalence and nature of AGN driven outflows in these galaxies by combining kinematic and ionization diagnostic…

Astrophysics of Galaxies · Physics 2015-06-23 Rebecca McElroy , Scott M. Croom , Michael Pracy , Rob Sharp , I-Ting Ho , Anne M. Medling
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