{{Short description|Radio galaxy in the constellation Boötes}} {{Infobox galaxy|name=B2 1441+26|epoch=[[J2000]]|constellation name=[[Boötes]]|ra={{RA|14|44|06.29}}<ref name="ned" />|dec={{DEC|+26|01|11.68}}<ref name="ned" />|z=0.061961<ref name="ned" />|h_radial_v=18575 ± 2 [[kilometer per second|km/s]]<ref name="ned" />|dist_ly={{convert|281.89 ± 19.73|Mpc|Mly|abbr=on|lk=on|order=flip}}<ref name="ned" />|mag_j=12.92<ref name="ned" />|mag_h=12.13<ref name="ned" />|size=~{{convert|59.9|kpc|ly|abbr=on|lk=on|order=flip}} (estimated){{r|ned}}|names=[[2MASX]] J14440631+2601118, [[Seventh Cambridge Survey|7C]] 1441+2614, [[Catalogue of Galaxies and of Clusters of Galaxies|CGCG]] 134-024, [[Principal Galaxies Catalogue|PGC]] 52616, 1441+26<ref name="ned" />|image=File:Image of B2 1441+26.png|caption=[[Sloan Digital Sky Survey|SDSS]] image of B2 1441+26}}
'''B2 1441+26''' is a [[radio galaxy]] located in the constellation of [[Boötes]]. The redshift of the galaxy is (z) 0.061<ref name="ned">{{Cite web |title=B2 1441+26 |url=https://ned.ipac.caltech.edu/byname?objname=B2+1441+26&hconst=67.8&omegam=0.308&omegav=0.692&wmap=4&corr_z=1 |access-date=2026-04-16 |website=NASA/IPAC Extragalactic Database}}</ref> and it was first discovered by [[Astronomer|astronomers]] in October 1983 from the B2 catalogue and such contains a double radio source.<ref name=":0">{{Cite journal |last1=Feretti |first1=L. |last2=Giovannini |first2=G. |last3=Gregorini |first3=L. |last4=Parma |first4=P. |date=October 1983 |title=WSRT observations of elliptical galaxies from the B2 catalogue. |url=https://articles.adsabs.harvard.edu/pdf/1983A%26A...126..311F |journal=Astronomy and Astrophysics |language=en |volume=126 |pages=311–319 |issn=0004-6361}}</ref>
== Description == B2 1441+26 is categorized as a [[Fanaroff–Riley classification|Fanaroff-Riley]] Class Type 1 low [[luminosity]] radio galaxy.<ref>{{Cite journal |last1=Giovannini |first1=G. |last2=Taylor |first2=G. B. |last3=Feretti |first3=L. |last4=Cotton |first4=W. D. |last5=Lara |first5=L. |last6=Venturi |first6=T. |date=January 2005 |title=The Bologna Complete Sample of Nearby Radio Sources |journal=The Astrophysical Journal |language=en |volume=618 |issue=2 |pages=635–648 |doi=10.1086/426106 |arxiv=astro-ph/0409624 |issn=0004-637X}}</ref><ref>{{Cite journal |last1=de Ruiter |first1=H. R. |last2=Parma |first2=P. |last3=Fanti |first3=C. |last4=Fanti |first4=R. |date=July 1986 |title=VLA observations of low luminosity radio galaxies. II. Sources with angular size larger than two arcminutes. |url=https://articles.adsabs.harvard.edu/pdf/1986A%26AS...65..111D |journal=Astronomy and Astrophysics Supplement Series |language=en |volume=65 |pages=111–144 |issn=0365-0138}}</ref><ref>{{Cite journal |last1=Fanti |first1=C. |last2=Fanti |first2=R. |last3=de Ruiter |first3=H. R. |last4=Parma |first4=P. |date=April 1987 |title=VLA observations of low luminosity radio galaxies. IV. The B2 sample revisited. |url=https://articles.adsabs.harvard.edu/pdf/1987A%26AS...69...57F |journal=Astronomy and Astrophysics Supplement Series |language=en |volume=69 |pages=57–76 |issn=0365-0138}}</ref> It is found to be hosted by a nearly face-on [[spiral galaxy]] although some studies suggest the host may might be an [[elliptical galaxy]] instead.<ref name=":1">{{Cite journal |last1=Carrillo |first1=R. |last2=Cruz-González |first2=I. |last3=Guichard |first3=J. |date=April 1997 |title=Weak Radio Galaxies. I. Broad-Band Optical Imaging |url=https://articles.adsabs.harvard.edu/pdf/1997RMxAA..33...31C |journal=Revista Mexicana de Astronomia y Astrofisica |language=en |volume=33 |pages=31–57 |issn=0185-1101}}</ref><ref name=":2">{{Cite journal |last1=González-Serrano |first1=J. I. |last2=Carballo |first2=R. |date=March 2000 |title=Surface photometry of radio loud elliptical galaxies from the B2 sample |url=https://aas.aanda.org/articles/aas/pdf/2000/06/h1643.pdf |journal=Astronomy and Astrophysics Supplement Series |language=en |volume=142 |issue=3 |pages=353–368 |doi=10.1051/aas:2000154 |issn=0365-0138}}</ref><ref>{{Cite journal |last1=Capetti |first1=A. |last2=de Ruiter |first2=H. R. |last3=Fanti |first3=R. |last4=Morganti |first4=R. |last5=Parma |first5=P. |last6=Ulrich |first6=M.-H. |date=October 2000 |title=The HST snapshot survey of the B2 sample of low luminosity radio-galaxies: a picture gallery |journal=Astronomy and Astrophysics |language=en |volume=362 |pages=871–885 |arxiv=astro-ph/0009056 |issn=0004-6361}}</ref> Studies also classify this as a weak radio galaxy (WRG) based on [[Optics|optical]] images with an ordinary [[Galactic disc|galactic disk]]. There also a presence of an inner structure or a [[spiral]] patterned bar feature. Two companions have been found located both east and northeast from the galaxy's nucleus.<ref name=":1" /> The [[extended emission-line region]] of the galaxy is shown unresolved.<ref>{{Cite journal |last1=Carrillo |first1=R. |last2=Cruz-González |first2=I. |last3=Guichard |first3=J. |date=April 1999 |title=Weak Radio Galaxies. II. Narrow-Band Optical Imaging and Physical Conditions |url=https://ui.adsabs.harvard.edu/scan/manifest/1999RMxAA..35...45C?art=true |journal=Revista Mexicana de Astronomia y Astrofisica |language=en |volume=35 |pages=45 |issn=0185-1101}}</ref>
The source of the galaxy has been found as double,<ref name=":0" /> being resolved into two separate components with further evidence that they contain a steep [[radio spectrum]] in addition.<ref>{{Cite journal |last=Malumyan |first=V. G. |date=May 1987 |title=RATAN-600 Observations of Faint Bologna Radio Galaxies at 7.6-CM and 3.9-CM |url=https://articles.adsabs.harvard.edu/pdf/1987SvAL...13..156M |journal=Soviet Astronomy Letters |language=en |volume=13 |pages=156}}</ref> There are presence of two asymmetric [[Radio galaxy|radio lobes]], with the lobe on the eastern side being as twice more luminous and being more [[polarized]] three times more compared to the lobe on the western side.<ref name=":3">{{Cite journal |last1=Mack |first1=K.-H. |last2=Gregorini |first2=L. |last3=Parma |first3=P. |last4=Klein |first4=U. |date=January 1994 |title=High-frequency radio continuum observations of radio galaxies with low and intermediate luminosity. II. Sources with sizes 4' to 5' |url=https://articles.adsabs.harvard.edu/pdf/1994A%26AS..103..157M |journal=Astronomy and Astrophysics Supplement Series |language=en |volume=103 |pages=157–182 |issn=0365-0138}}</ref><ref>{{Cite journal |last1=Capetti |first1=A. |last2=Morganti |first2=R. |last3=Parma |first3=P. |last4=Fanti |first4=R. |date=June 1993 |title=Polarization in low luminosity radio galaxies. |url=https://articles.adsabs.harvard.edu/pdf/1993A%26AS...99..407C |journal=Astronomy and Astrophysics Supplement Series |language=en |volume=99 |pages=407–435 |issn=0365-0138}}</ref> The lobes also have a different [[magnetic field]] direction, being [[Orientation (geometry)|orientated]] parallel towards the axis of the source but also in an almost perpendicular direction.<ref name=":3" /> Towards the inner region of the lobes, there is a steepening of the spectrum although the low brightness meant the tracing of steepening along the lobes' length is only halfway.<ref>{{Cite journal |last1=Parma |first1=P. |last2=Murgia |first2=M. |last3=Morganti |first3=R. |last4=Capetti |first4=A. |last5=de Ruiter |first5=H. R. |last6=Fanti |first6=R. |date=April 1999 |title=Radiative ages in a representative sample of low luminosity radio galaxies |journal=Astronomy and Astrophysics |language=en |volume=344 |pages=7–16 |arxiv=astro-ph/9812413 |issn=0004-6361}}</ref> A radio core is found embedded inside the eastern lobe.<ref name=":2" />
== References == <references />
== External links == {{WikiSky}}
{{Boötes}} [[Category:Radio galaxies]] [[Category:Boötes]] [[Category:Active galaxies]] [[Category:Spiral galaxies]] [[Category:Principal Galaxies Catalogue objects|052616]] [[Category:Astronomical objects discovered in 1983]]