1ES 1741+196

BL Lac located in the constellation of Hercules 1ES 1741+196 J2000.0 Hercules 17 43 57.83 +19 35 09.01 0.084000 25,183 km/s 1.217 Gly (373.13 Mpc) 16.8 BL Lac 103.65 kpc ly -2 off(diameter; 2MASS K-band total isophote) LEDA 1597986, 87GB 174148.7+193615, TXS 1741+196, RX J1743.8+1935, IRCF J174357.8+193509, S3 1741+19, TeV J1743+196 Low luminosity blazar File:Image of 1ES 1741+196.jpg The BL Lac object 1ES 1741+196. 1ES 1741+196 is a BL Lacertae object (BL Lac) located in the constellation of Hercules. It is located 1.2 billion light years from Earth.By Name NASA/IPAC Extragalactic Database http://ned.ipac.caltech.edu/byname?objname=1ES+1741+196&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1 2024-10-18 ned.ipac.caltech.edu It was first discovered in 1996 via an Einstein Observatory X-ray satellite.Astronomers measure and model a blazing gamma-ray source – Astronomy Now https://astronomynow.com/2016/06/06/astronomers-measure-and-model-a-blazing-gamma-ray-source/ 2024-10-18 en-USPerlman Eric S. Stocke John T. Schachter Jonathan F. Elvis Martin Ellingson Erica Urry C. Megan Potter Michael Impey Chris D. Kolchinsky Peter June 1996 The Einstein Slew Survey Sample of BL Lacertae Objects http://dx.doi.org/10.1086/192300 The Astrophysical Journal Supplement Series 104 251 10.1086/192300 1996ApJS..104..251P 0067-0049 subscription Because the galaxy's synchrotron peak is found above 1 keV, it is categorized as a high-frequency peaked object.Abeysekara A.U. Archambault S. Archer A. Benbow W. Bird R. Biteau J. May 2016 VERITAS and multiwavelength observations of the BL Lacertae object 1ES 1741+196 https://academic.oup.com/mnras/article/459/3/2550/2595121?login=false Monthly Notices of the Royal Astronomical Society 459 3 2550–2557 10.1093/mnras/stw664 free 1603.07286 Characteristics The nucleus of 1ES 1741+196 is active. It has been classified as an extreme blazar due to having a flat high energy gamma ray spectrumGoswami P. Zacharias M. Zech A. Chandra S. Boettcher M. Sushch I. February 2024 The variety of extreme blazars in the AstroSat view https://www.aanda.org/articles/aa/pdf/2024/02/aa48121-23.pdf Astronomy & Astrophysics 682 A134 10.1051/0004-6361/202348121 2311.12695 2024A&A...682A.134G 0004-6361 or alternatively, a high-energy BL Lac.Lister Matthew MOJAVE Sample: 1741+196 https://www.cv.nrao.edu/MOJAVE/sourcepages/1741+196.shtml 2024-10-18 www.cv.nrao.edu One accepted theory for this energy source in most active galactic nuclei is a presence of an accretion disk around its supermassive black hole. The mass of the black hole in the center of the galaxy is estimated to be 8.93 ± 0.70 M☉ based on a fundamental plane measurement.Vovk Ie. Neronov A. April 2013 Variability of Gamma-Ray Emission from Blazars on Black Hole Timescales https://iopscience.iop.org/article/10.1088/0004-637X/767/2/103/pdf The Astrophysical Journal 767 103 103 10.1088/0004-637X/767/2/103 1304.0915 2013ApJ...767..103V Apart from that, 1ES 1741+196 has an isotopic luminosity of ~ 8.2 × 1043 erg s−1, making it less luminous amongst other TeV blazars.Ahnen M.L. Ansoldi S. Antonelli L.A. Antoranz P. Arcaro C. Babic A. Banerjee B. June 2017 MAGIC detection of very high energy γ-ray emission from the low-luminosity blazar 1ES 1741+196 https://academic.oup.com/mnras/article/468/2/1534/3051675?login=false Monthly Notices of the Royal Astronomical Society 468 2 1534–1541 10.1093/mnras/stx472 free 1702.06795 When observed in very high energy (VHE) band, 1ES 1741+196 shows no evidence of strong flares. Its X-ray spectrum is known to be variable compared to its steady gamma ray spectrum, with it rising up by a factor of 3 in terms of variability. The host galaxy of 1ES 1741+196 is an elliptical galaxy, one of the largest and brightest BL Lac host galaxies observed. It has a redshift magnitude relation of -24.85 and a galaxy effective radius of 51.2 kiloparsecs, which its overall luminosity distribution is obtained via a de Vaucouleurs profile. Additionally, there are two galaxy companions within the galaxy's position. They have same redshifts,Nilsson K. Pursimo T. Heidt J. Takalo L. O. Sillanpää A. Brinkmann W. 2003-02-24 R-band imaging of the host galaxies of RGB BL Lacertae objects https://www.aanda.org/articles/aa/pdf/2003/10/aah3941.pdf Astronomy & Astrophysics 400 1 95–118 10.1051/0004-6361:20021861 2003A&A...400...95N 0004-6361 with projected distances of 7.2 and 25.2 kiloparsecs. Given 1ES 1741+196 has a flat luminosity profile, its position along an impact parameter towards the neighbors and a high ellipticity, this suggests tidal forces. Further evidence also shows a presence of a tidal tail between the companions, indicating the three galaxies are interacting.Heidt J. Nilsson K. Fried J. W. Takalo L. O. Sillanpää A. 1999-08-01 1ES 1741+196: a BL Lacertae object in a triplet of interacting galaxies? https://ui.adsabs.harvard.edu/abs/1999A&A...348..113H/abstract Astronomy and Astrophysics 348 113–116 astro-ph/9906129 1999A&A...348..113H 0004-6361 1ES 1741+196 has an extended radio jet towards the east direction with a projected position angle of °80.Wu Zhongzu Jiang D. R. Gu Minfeng Liu Yi 2007-02-20 VLBI observations of seven BL Lacertae objects from RGB sample https://www.aanda.org/articles/aa/pdf/2007/16/aa6754-06.pdf Astronomy & Astrophysics 466 1 63–73 10.1051/0004-6361:20066754 0706.0191 2007A&A...466...63W 0004-6361Rector T.A. Gabuzda D.C. Peterson D.C. Stocke J.T. 2005 The Propagation of Jets in High-Energy Peaked BL Lacertae Objects https://articles.adsabs.harvard.edu//full/2005ASPC..340..116R/0000117.000.html Future Directions in High Resolution Astronomy: The 10th Anniversary of the VLBA, ASP Conference Proceedings 340 116–118 2005ASPC..340..116R The jet is known to be straight despite showing signs of a 5° bend towards south by 15-20 parsecs from its core.Rector Travis A. Gabuzda Denise C. Stocke John T. March 2003 The Radio Structure of High-Energy–Peaked BL Lacertae Objects https://iopscience.iop.org/article/10.1086/367802/fulltext/ The Astronomical Journal 125 3 1060–1072 10.1086/367802 astro-ph/0302397 2003AJ....125.1060R 0004-6256 Furthermore, the jet is known to be aligned well with a parsec-scale jet. References External links 1ES 1741+196 on SIMBAD Category:BL Lacertae objects Category:Hercules (constellation) 1597986 Category:Blazars Category:Active galaxies Category:Galaxies discovered in 1996