Mz 1 [SEP] constellation
Mz 1
Mz 1 (Menzel 1), is a bipolar planetary nebula (PN) in the constellation Norma.
Characteristics.
Menzel 1 is a bright PN that has a prominent central ring of enhanced emission. One model of its structure is a three-dimensional hour-glass shape with a smoothly decreasing density starting from the waist or equator as measured outwardly to the poles. It is radially expanding at a rate of about 23 km/s and estimated to be around 4,500 to 10,000 years old and
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2. United States Patent 8,216,228 - Pachon Mateos, et al. July 10, 2012
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=af-nest&s2=cardioneuroablation&OS=af-nest+AND+cardioneuroablation&RS=af-nest+AND+cardioneuroablation
1. Mateos JC, Mateos EI, Lobo TJ, Pachón MZ, Mateos JC, Pachón DQ, Vargas RN, Piegas LS, Jatene AD. Radiofrequency catheter ablation of atrial fibrillation guided by spectral mapping of atrial fibrillation nests in sinus rhythm. Arq Bras Cardiol. 2007 Sep;89(3):124-34, 140-50. English, Portuguese. PubMed .
2. Arruda M, Natale A. Ablation of