2021NatAs...5.1017J


Query : 2021NatAs...5.1017J

2021NatAs...5.1017J - Nature Astronomy, 5, 1017-1028 (2021/October-0)

Event Horizon Telescope observations of the jet launching and collimation in Centaurus A.

JANSSEN M., FALCKE H., KADLER M., ROS E., WIELGUS M., AKIYAMA K., BALOKOVIC M., BLACKBURN L., BOUMAN K.L., CHAEL A., CHAN C.-K., CHATTERJEE K., DAVELAAR J., EDWARDS P.G., FROMM C.M., GOMEZ J.L., GODDI C., ISSAOUN S., JOHNSON M.D., KIM J., KOAY J.Y., KRICHBAUM T.P., LIU J., LIUZZO E., MARKOFF S., MARKOWITZ A., MARRONE D.P., MIZUNO Y., MULLER C., NI C., PESCE D.W., RAMAKRISHNAN V., ROELOFS F., RYGL K.L.J., VAN BEMMEL I. (The Event Horizon Telescope Collaboration), ALBERDI A., ALEF W., ALGABA J.C., ANANTUA R., ASADA K., AZULAY R., BACZKO A.-K., BALL D., BALL D., BARRETT J., BENSON B.A., BINTLEY D., BINTLEY D., BLUNDELL R., BOLAND W., BOLAND W., BOWER G.C., BOYCE H., BREMER M., BRINKERINK C.D., BRISSENDEN R., BRITZEN S., BRODERICK A.E., BROGUIERE D., BRONZWAER T., BYUN D.-Y., CARLSTROM J.E., CHATTERJEE S., CHEN M.-T., CHEN Y., CHESLER P.M., CHO I., CHRISTIAN P., CONWAY J.E., CORDES J.M., CRAWFORD T.M., CREW G.B., CRUZ-OSORIO A., CUI Y., CUI Y., DE LAURENTIS M., DEANE R., DEMPSEY J., DESVIGNES G., DEXTER J., DOELEMAN S.S., EATOUGH R.P., FARAH J., FARAH J., FISH V.L., FOMALONT E., FORD H.A., FRAGA-ENCINAS R., FRIBERG P., FRIBERG P., FUENTES A., GALISON P., GAMMIE C.F., GARCIA R., GELLES Z., GENTAZ O., GEORGIEV B., GEORGIEV B., GOLD R., GOLD R., GOMEZ-RUIZ A.I., GU M., GURWELL M., HADA K., HAGGARD D., HECHT M.H., HESPER R., HIMWICH E., HO L.C., HO P., HONMA M., HUANG C.-W.L., HUANG L., HUGHES D.H., IKEDA S., INOUE M., INOUE M., JAMES D.J., JANNUZI B.T., JANNUZI B.T., JETER B., JIANG W., JIMENEZ-ROSALES A., JIMENEZ-ROSALES A., JORSTAD S., JUNG T., KARAMI M., KARUPPUSAMY R., KAWASHIMA T., KEATING G.K., KETTENIS M., KIM D.-J., KIM J.-Y., KIM J.-Y., KIM J., KINO M., KINO M., KOFUJI Y., KOYAMA S., KRAMER M., KRAMER C., KRAMER C., KUO C.-Y., LAUER T.R., LEE S.-S., LEVIS A., LI Y.-R., LI Z., LINDQVIST M., LICO R., LINDAHL G., LINDAHL G., LIU K., LIU K., LO W.-P., LOBANOV A.P., LOINARD L., LONSDALE C., LU R.-S., MacDONALD N.R., MAO J., MARCHILI N., MARCHILI N., MARCHILI N., MARSCHER A.P., MARTI-VIDAL I., MATSUSHITA S., MATTHEWS L.D., MEDEIROS L., MENTEN K.M., MIZUNO I., MIZUNO I., MORAN J.M., MORIYAMA K., MOSCIBRODZKA M., MOSCIBRODZKA M., MUSOKE G., MEJIAS A.M., NAGAI H., NAGAR N.M., NAKAMURA M., NARAYAN R., NARAYANAN G., NATARAJAN I., NATHANAIL A., NEILSEN J., NERI R., NERI R., NOUTSOS A., NOWAK M.A., OKINO H., OLIVARES H., ORTIZ-LEON G.N., OYAMA T., OZEL F., PALUMBO D.C.M., PARK J., PATEL N., PEN U.-L., PEN U.-L., PIETU V., PLAMBECK R., POPSTEFANIJA A., PORTH O., POTZL F.M., PRATHER B., PRECIADO-LOPEZ J.A., PSALTIS D., PU H.-Y., PU H.-Y., RAO R., RAWLINGS M.G., RAYMOND A.W., REZZOLLA L., RICARTE A., RIPPERDA B., RIPPERDA B., ROGERS A., ROGERS A., ROSE M., ROSHANINESHAT A., ROTTMANN H., ROY A.L., RUSZCZYK C., RUSZCZYK C., SANCHEZ S., SANCHEZ-ARGUELLES D., SASADA M., SAVOLAINEN T., SCHLOERB F.P., SCHUSTER K.-F., SHAO L., SHEN Z., SMALL D., SOHN B.W., SOOHOO J., SUN H., TAZAKI F., TETARENKO A.J., TIEDE P., TILANUS R.P.J., TITUS M., TORNE P., TRENT T., TRAIANOU E., TRIPPE S., VAN BEMMEL I., VAN LANGEVELDE H.J., VAN ROSSUM D.R., WAGNER J., WARD-THOMPSON D., WARDLE J., WEINTROUB J., WEX N., WHARTON R., WHARTON R., WONG G.N., WU Q., YOON D., YOUNG A., YOUNG K., YOUNSI Z., YUAN F., YUAN Y.-F., ZENSUS J.A., ZHAO G.-Y. and ZHAO S.-S.

Abstract (from CDS):

Very-long-baseline interferometry (VLBI) observations of active galactic nuclei at millimetre wavelengths have the power to reveal the launching and initial collimation region of extragalactic radio jets, down to 10-100 gravitational radii (rg ≡ GM/c2) scales in nearby sources1. Centaurus A is the closest radio-loud source to Earth2. It bridges the gap in mass and accretion rate between the supermassive black holes (SMBHs) in Messier 87 and our Galactic Centre. A large southern declination of -43° has, however, prevented VLBI imaging of Centaurus A below a wavelength of 1 cm thus far. Here we show the millimetre VLBI image of the source, which we obtained with the Event Horizon Telescope at 228 GHz. Compared with previous observations3, we image the jet of Centaurus A at a tenfold higher frequency and sixteen times sharper resolution and thereby probe sub-lightday structures. We reveal a highly collimated, asymmetrically edge-brightened jet as well as the fainter counterjet. We find that the source structure of Centaurus A resembles the jet in Messier 87 on ∼500 rg scales remarkably well. Furthermore, we identify the location of Centaurus A's SMBH with respect to its resolved jet core at a wavelength of 1.3 mm and conclude that the source's event horizon shadow4 should be visible at terahertz frequencies. This location further supports the universal scale invariance of black holes over a wide range of masses5,6.

Abstract Copyright: ©

Journal keyword(s): Astrophysics - Astrophysics of Galaxies - Astrophysics - Cosmology and Nongalactic Astrophysics - Astrophysics - High Energy Astrophysical Phenomena

Simbad objects: 8

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Number of rows : 8
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 NGC 1275 Bla 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4243 3
2 NAME M87 Jet Rad 12 30 49.423 +12 23 28.04           ~ 315 1
3 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
4 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
5 Z 225-7 BLL 16 53 52.21668403 +39 45 36.6088754 14.09 14.15 13.29 8.26   ~ 2304 2
6 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
7 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 4970 3
8 NAME Cen A Jet PoG ~ ~           ~ 51 0

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