SDSS J110012.38+084616.3

SDSS J110012.38+084616.3
The type 2 quasar SDSS J110012.38+084616.3
Observation data (J2000.0 epoch)
ConstellationLeo
Right ascension11h 00m 12.38s[1]
Declination+08° 46′ 16.33″[1]
Redshift0.100432[1]
Heliocentric radial velocity30,109 km/s[1]
Distance1.366 Gly
Apparent magnitude (V)17.38
Characteristics
TypeQSO2[1]
Size~213,000 ly (65.4 kpc) (estimated)[1]
Other designations
2MASX J11001238+0846157, NVSS J110012+084616, LEDA 3469502, LAMOST J110012.39+084616.3

SDSS J110012.38+084616.3 known as J1100+0846, is a type 2 quasar[2] located in the constellation of Leo. The redshift of the object is (z) 0.1004[1] and it was first discovered by astronomers in March 2009 through an infrared photometric study.[3] It is classified as radio-quiet.[4]

Description

SDSS J110012.38+084616.3 is classified as a large moderately inclined type SBb barred spiral galaxy with an undisturbed appearance based on it showing no evidence of any galaxy mergers and a total star formation rate estimating to be 34 Mʘ per year.[5][6][7] There are presence of spiral arms in the galaxy with carbon monoxide (CO) mapping describing the first arm as having a negative velocity on the western bar edge and a positive velocity on the second arm on the eastern bar edge. A large region of molecular gas is found in the galaxy according to imaging made with Atacama Large Millimeter Array.[7]

The doubly ionized oxygen [O III] emission appears to be very compact when imaged with Advanced Camera for Surveys instrument abroad the Hubble Space Telescope. Based on imaging, it has a near circular appearance and a small tail slightly extended towards the south-east direction. In its nucleus, there is radio emission blueshifted to southeast with a full width at half maximum velocity of 1000 kilometers per seconds. Disturbed kinematics can be seen extending northwest from the nucleus to single-component emission lines.[6] The radio morphology of the galaxy can be classified as having an irregular radio features with nuclear components either being dominated by its jet, lobe or by wind, and a linear size of 0.8 kiloparsec.[8] The kinetic power of the jet is estimated to be 8.3+2.5-2 x 1043 erg s-1.[9]

A study made in 2024, has shown the nuclear radio emission is elongating towards the direction that is consistent with its radio structure. Observations also showed there is presence of hydrogen-alpha emission in the galaxy tracing both its disk and spiral arms. A moment 2 map found the velocity dispersion is mainly low in relation with the arms whereas the central region has a high turbulence of gas with velocity dispersions reaching upwards to 500 kilometers per seconds. Results also showed the total mass of the outflow in the galaxy is 6 Mʘ per year with an outflow kinetic power of 1.8 ± 2.8 x 1042 erg s-1 and maximum outflow velocity of 977 ± 120 kilometers per seconds.[9] In its emission line profiles, broad wings are present over the field of view with an extent of 9 x 6 kiloparsecs.[10] Crystalline silicate features were also detected in weak radio emission of the galaxy's spectra at a 23 ɥm band by James Webb Space Telescope, suggesting the galaxy is moderately obscured.[11]

References

  1. ^ a b c d e f g "NED Search results for SDSS J110012.38+084616.3". NASA/IPAC Extragalactic Database. Retrieved 2025-08-31.
  2. ^ Mateos, Silvia (October 2010). "SDSS J110012.38+084616.3: A Compton-thick or X-ray weak AGN?". XMM-Newton Proposal: 183. Bibcode:2010xmm..prop..183M.
  3. ^ Chen, P. S.; Shan, H. G. (March 2009). "Infrared photometric study of type II quasars". Monthly Notices of the Royal Astronomical Society. 393 (4): 1408–1422. Bibcode:2009MNRAS.393.1408C. doi:10.1111/j.1365-2966.2008.14222.x. ISSN 0035-8711.
  4. ^ Jarvis, M E; Harrison, C M; Mainieri, V; Alexander, D M; Arrigoni Battaia, F; Calistro Rivera, G; Circosta, C; Costa, T; De Breuck, C; Edge, A C; Girdhar, A; Kakkad, D; Kharb, P; Lansbury, G B; Molyneux, S J (2021-05-11). "The quasar feedback survey: discovering hidden Radio-AGN and their connection to the host galaxy ionized gas". Monthly Notices of the Royal Astronomical Society. 503 (2): 1780–1797. arXiv:2103.00014. doi:10.1093/mnras/stab549. ISSN 0035-8711.
  5. ^ Willett, Kyle W.; Lintott, Chris J.; Bamford, Steven P.; Masters, Karen L.; Simmons, Brooke D.; Casteels, Kevin R. V.; Edmondson, Edward M.; Fortson, Lucy F.; Kaviraj, Sugata; Keel, William C.; Melvin, Thomas; Nichol, Robert C.; Raddick, M. Jordan; Schawinski, Kevin; Simpson, Robert J. (2013-09-16). "Galaxy Zoo 2: detailed morphological classifications for 304 122 galaxies from the Sloan Digital Sky Survey". Monthly Notices of the Royal Astronomical Society. 435 (4): 2835–2860. arXiv:1308.3496. doi:10.1093/mnras/stt1458. ISSN 1365-2966.
  6. ^ a b Fischer, Travis C.; Kraemer, S. B.; Schmitt, H. R.; Micchi, L. F. Longo; Crenshaw, D. M.; Revalski, M.; Vestergaard, M.; Elvis, M.; Gaskell, C. M.; Hamann, F.; Ho, L. C.; Hutchings, J.; Mushotzky, R.; Netzer, H.; Storchi-Bergmann, T. (2018-03-28). "Hubble Space Telescope Observations of Extended [O iii]λ 5007 Emission in Nearby QSO2s: New Constraints on AGN Host Galaxy Interaction". The Astrophysical Journal. 856 (2): 102. arXiv:1802.06184. Bibcode:2018ApJ...856..102F. doi:10.3847/1538-4357/aab03e. ISSN 0004-637X.
  7. ^ a b Almeida, C. Ramos; Bischetti, M.; García-Burillo, S.; Alonso-Herrero, A.; Audibert, A.; Cicone, C.; Feruglio, C.; Tadhunter, C. N.; Pierce, J. C. S.; Pereira-Santaella, M.; Bessiere, P. S. (2022-02-01). "The diverse cold molecular gas contents, morphologies, and kinematics of type-2 quasars as seen by ALMA". Astronomy & Astrophysics. 658: A155. arXiv:2111.13578. Bibcode:2022A&A...658A.155R. doi:10.1051/0004-6361/202141906. ISSN 0004-6361.
  8. ^ Jarvis, M E; Harrison, C M; Thomson, A P; Circosta, C; Mainieri, V; Alexander, D M; Edge, A C; Lansbury, G B; Molyneux, S J; Mullaney, J R (2019-02-25). "Prevalence of radio jets associated with galactic outflows and feedback from quasars". Monthly Notices of the Royal Astronomical Society. 485 (2): 2710–2730. arXiv:1902.07727. doi:10.1093/mnras/stz556. ISSN 0035-8711.
  9. ^ a b Ulivi, L.; Venturi, G.; Cresci, G.; Marconi, A.; Marconcini, C.; Amiri, A.; Belfiore, F.; Bertola, E.; Carniani, S.; D'Amato, Q.; Di Teodoro, E.; Ginolfi, M.; Girdhar, A.; Harrison, C.; Maiolino, R. (May 2024). "Feedback and ionized gas outflows in four low-radio power AGN at z ∼ 0.15". Astronomy and Astrophysics. 685: A122. arXiv:2403.01258. Bibcode:2024A&A...685A.122U. doi:10.1051/0004-6361/202347436. ISSN 0004-6361.
  10. ^ Harrison, C. M.; Alexander, D. M.; Mullaney, J. R.; Swinbank, A. M. (2014-05-31). "Kiloparsec-scale outflows are prevalent among luminous AGN: outflows and feedback in the context of the overall AGN population". Monthly Notices of the Royal Astronomical Society. 441 (4): 3306–3347. arXiv:1403.3086. doi:10.1093/mnras/stu515. ISSN 1365-2966.
  11. ^ Ramos Almeida, C.; García-Bernete, I.; Pereira-Santaella, M.; Speranza, G.; Maiolino, R.; Ji, X.; Audibert, A.; Cezar, P. H.; Acosta-Pulido, J. A.; Alonso-Herrero, A.; García-Burillo, S.; González-Martín, O.; Rigopoulou, D.; Tadhunter, C. N.; Labiano, A. (June 2025). "JWST MIRI reveals the diversity of nuclear mid-infrared spectra of nearby type 2 quasars". Astronomy & Astrophysics. 698: A194. arXiv:2504.01595. Bibcode:2025A&A...698A.194R. doi:10.1051/0004-6361/202453549. ISSN 0004-6361.
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