01636nas a2200673   4500000000100000000000100001008004100002100001900043700001600062700002000078700001900098700002000117700002200137700001500159700001300174700001600187700001700203700001600220700001700236700001800253700002100271700001600292700001700308700001600325700001400341700001400355700001400369700001500383700001200398700001900410700001800429700001300447700001300460700001600473700002100489700001200510700001200522700001300534700001600547700002000563700001700583700001500600700002000615700001500635700002200650700001700672700001400689700002300703700001300726700002200739700001700761700001400778700001700792700001800809700001800827245009500845300001400940490000800954       2015                            d1 aM. D. Johnson1 aV. L. Fish1 aS. S. Doeleman1 aD. P. Marrone1 aR. L. Plambeck1 aJ. F. C. Wardle1 aK. Akiyama1 aK. Asada1 aC. Beaudoin1 aL. Blackburn1 aR. Blundell1 aG. C. Bower1 aC. Brinkerink1 aA. E. Broderick1 aR. Cappallo1 aA. A. Chael1 aG. B. Crew1 aJ. Dexter1 aM. Dexter1 aR. Freund1 aP. Friberg1 aR. Gold1 aM. A. Gurwell1 aP. T. P. Ho1 aM. Honma1 aM. Inoue1 aM. Kosowsky1 aT. P. Krichbaum1 aJ. Lamb1 aA. Loeb1 aR.-S. Lu1 aD. MacMahon1 aJ. C. McKinney1 aJ. M. Moran1 aR. Narayan1 aR. A. Primiani1 aD. Psaltis1 aA. E. E. Rogers1 aK. Rosenfeld1 aJ. SooHoo1 aR. P. J. Tilanus1 aM. Titus1 aL. Vertatschitsch1 aJ. Weintroub1 aM. Wright1 aK. H. Young1 aJ. A. Zensus1 aL. M. Ziurys00aResolved magnetic-field structure and variability near the event horizon of Sagittarius A*  a1242-12450 v350