[ { "id": "authors:p2age-ve383", "collection": "authors", "collection_id": "p2age-ve383", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20110308-123057474", "type": "article", "title": "The Three-dimensional Structure of Cassiopeia A", "author": [ { "family_name": "Delaney", "given_name": "Tracey", "clpid": "Delaney-T" }, { "family_name": "Rudnick", "given_name": "Lawrence", "clpid": "Rudnick-L" }, { "family_name": "Stage", "given_name": "M. D.", "clpid": "Stage-M-D" }, { "family_name": "Smith", "given_name": "J. D.", "orcid": "0000-0003-1545-5078", "clpid": "Smith-J-D-T" }, { "family_name": "Isensee", "given_name": "Karl", "clpid": "Isensee-K" }, { "family_name": "Rho", "given_name": "Jeonghee", "orcid": "0000-0003-3643-839X", "clpid": "Rho-Jeonghee" }, { "family_name": "Allen", "given_name": "Glenn E.", "clpid": "Allen-G-E" }, { "family_name": "Gomez", "given_name": "Haley", "clpid": "Gomez-H" }, { "family_name": "Kozasa", "given_name": "Takashi", "clpid": "Kozasa-Takashi" }, { "family_name": "Reach", "given_name": "William T.", "orcid": "0000-0001-8362-4094", "clpid": "Reach-W-T" }, { "family_name": "Davis", "given_name": "J. E.", "clpid": "Davis-J-E" }, { "family_name": "Houck", "given_name": "J. C.", "clpid": "Houck-J-C" } ], "abstract": "We used the Spitzer Space Telescope's Infrared Spectrograph to map nearly the entire extent of Cassiopeia A\nbetween 5 and 40\u03bcm. Using infrared and Chandra X-ray Doppler velocity measurements, along with the locations\nof optical ejecta beyond the forward shock, we constructed a three-dimensional model of the remnant. The structure\nof Cas A can be characterized into a spherical component, a tilted thick disk, and multiple ejecta jets/pistons and\noptical fast-moving knots all populating the thick disk plane. The Bright Ring in Cas A identifies the intersection\nbetween the thick plane/pistons and a roughly spherical reverse shock. The ejecta pistons indicate a radial velocity\ngradient in the explosion. Some ejecta pistons are bipolar with oppositely directed flows about the expansion center\nwhile some ejecta pistons show no such symmetry. Some ejecta pistons appear to maintain the integrity of the\nnuclear burning layers while others appear to have punched through the outer layers. The ejecta pistons indicate\na radial velocity gradient in the explosion. In three dimensions, the Fe jet in the southeast occupies a \"hole\" in\nthe Si-group emission and does not represent \"overturning,\" as previously thought. Although interaction with the\ncircumstellar medium affects the detailed appearance of the remnant and may affect the visibility of the southeast\nFe jet, the bulk of the symmetries and asymmetries in Cas A are intrinsic to the explosion.", "doi": "10.1088/0004-637X/725/2/2038", "issn": "0004-637X", "publisher": "American Astronomical Society", "publication": "Astrophysical Journal", "publication_date": "2010-12-20", "series_number": "2", "volume": "725", "issue": "2", "pages": "2038-2058" }, { "id": "authors:kaxw6-wmj09", "collection": "authors", "collection_id": "kaxw6-wmj09", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20160617-074729772", "type": "article", "title": "The Replication of Bacteriophage MS2: III. Asymmetric Complementation between Temperature-sensitive Mutants", "author": [ { "family_name": "Pfeifer", "given_name": "Dietrich", "clpid": "Pfeifer-D" }, { "family_name": "Davis", "given_name": "James E.", "clpid": "Davis-J-E" }, { "family_name": "Sinsheimer", "given_name": "Robert L.", "clpid": "Sinsheimer-R-L" } ], "abstract": "The isolation and properties of a set of seven temperature-sensitive mutants of the RNA bacteriophage, MS2, are described. Temperature-shift experiments and assays of the production of infective RNA at the high temperature suggest that some of these mutants are blocked at an early stage of infection, while others are defective at a near-terminal step.", "doi": "10.1016/S0022-2836(64)80062-0", "issn": "0022-2836", "publisher": "Elsevier", "publication": "Journal of Molecular Biology", "publication_date": "1964-12", "series_number": "3", "volume": "10", "issue": "3", "pages": "412-421" }, { "id": "authors:fw4ee-2pn21", "collection": "authors", "collection_id": "fw4ee-2pn21", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20160610-103646469", "type": "article", "title": "The Replication of Bacteriophage MS2 II. An in vivo Specificity for the Synthesis of Infective RNA", "author": [ { "family_name": "Davis", "given_name": "James E.", "clpid": "Davis-J-E" }, { "family_name": "Pfeifer", "given_name": "Dietrich", "clpid": "Pfeifer-D" }, { "family_name": "Sinsheimer", "given_name": "Robert L.", "clpid": "Sinsheimer-R-L" } ], "abstract": "Multiple infection with wild-type MS2 and a plaque-morphology mutant of MS2 is demonstrated.\nAn infectivity assay for phage RNA is described and growth curves for intracellular infective RNA in MS2-infected cells are presented which demonstrate the presence of a pool of infective RNA prior to the appearance of progeny virus particles.\nExperiments are described which indicate that the synthetic system established in an MS2-infected cell will not be used to produce infective RNA of a genetically distinguishable superinfecting phage.", "doi": "10.1016/S0022-2836(64)80022-X", "issn": "0022-2836", "publisher": "Elsevier", "publication": "Journal of Molecular Biology", "publication_date": "1964-10", "series_number": "1", "volume": "10", "issue": "1", "pages": "1-9" }, { "id": "authors:f3jxd-wk917", "collection": "authors", "collection_id": "f3jxd-wk917", "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20160616-133842497", "type": "article", "title": "The Replication of Bacteriophage MS2: 1. Transfer of Parental Nucleic Acid to Progeny Phage", "author": [ { "family_name": "Davis", "given_name": "James E.", "clpid": "Davis-J-E" }, { "family_name": "Sinsheimer", "given_name": "Robert L.", "clpid": "Sinsheimer-R-L" } ], "abstract": "Conditions and procedures are described for the growth and assay of bacteriophage MS2, an RNA-containing phage.\nProcedures are described for the preparation of ^(15)N^(32)P-labeled MS2 phage, and for the use of such labeled phage in the measurement of transfer of parental RNA to progeny phage. No evidence for any type of conservative or semi-conservative transfer is found and dispersive transfer is limited to 3%.", "doi": "10.1016/S0022-2836(63)80069-8", "issn": "0022-2836", "publisher": "Elsevier", "publication": "Journal of Molecular Biology", "publication_date": "1963-03", "series_number": "3", "volume": "6", "issue": "3", "pages": "203-207" } ]