Search Results - "Karnath, Nicole"
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The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars. II. A Statistical Characterization of Class 0 and Class I Protostellar Disks
Published in The Astrophysical journal (20-02-2020)“…We have conducted a survey of 328 protostars in the Orion molecular clouds with the Atacama Large Millimeter/submillimeter Array at 0.87 mm at a resolution of…”
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Surveying the Giant H ii Regions of the Milky Way with SOFIA. VI. NGC 3603
Published in The Astrophysical journal (01-03-2024)“…Abstract We present our sixth set of results from our mid-infrared imaging survey of Milky Way Giant H ii regions with our detailed analysis of NGC 3603, the…”
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A Multiwavelength Study of the Symbiotic Mira HM Sge with SOFIA and HST
Published in The Astrophysical journal (01-01-2024)“…Abstract We have targeted the dusty symbiotic Mira system HM Sge with four instruments from the IR to the UV. We have used these observations along with…”
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HOPS 361-C’s Jet Decelerating and Precessing through NGC 2071 IR
Published in The Astrophysical journal (01-05-2023)“…Abstract We present a two-epoch Hubble Space Telescope study of NGC 2071 IR highlighting HOPS 361-C, a protostar producing an arced 0.2 parsec-scale jet. The…”
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The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars. IV. Unveiling the Embedded Intermediate-Mass Protostar and Disk within OMC2-FIR3/HOPS-370
Published in The Astrophysical journal (01-12-2020)“…Abstract We present ALMA (0.87 and 1.3 mm) and VLA (9 mm) observations toward the candidate intermediate-mass protostar OMC2-FIR3 (HOPS-370; L bol ∼ 314 L ⊙ )…”
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FORCASTing the Spectroscopic Dust Properties of the WC+O Binary WR 137 with SOFIA
Published in The Astrophysical journal (01-10-2023)“…Abstract WR 137 (HD 192641) is a binary system consisting of a carbon-rich Wolf–Rayet (W-R) star and an Oe companion star in a 13 yr orbit. Near periastron,…”
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The VLA/ALMA Nascent Disk And Multiplicity (VANDAM) Survey of Orion Protostars. V. A Characterization of Protostellar Multiplicity
Published in The Astrophysical journal (01-01-2022)“…Abstract We characterize protostellar multiplicity in 20 Current address: Niels Bohr Institute, University of Copenhagen, Øster Voldgade 5â7, DK-1350,…”
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An Analysis of the Complex and Compact Outflow Cavity Carved by HOPS 361-A in NGC 2071 IR
Published in The Astrophysical journal (01-10-2024)“…Abstract We present a combined Stratospheric Observatory for Infrared Astronomy (SOFIA) and two-epoch Hubble Space Telescope (HST) study of the region NGC 2071…”
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9
The Long-period Spectroscopic Orbit and Dust Creation in the Wolf–Rayet Binary System WR 125
Published in The Astrophysical journal (01-07-2024)“…Abstract Several long-period binaries with a carbon-rich Wolf–Rayet star and an OB star produce dust in their wind collisions. In eccentric binaries, this is…”
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Investigating Protostellar Accretion-driven Outflows across the Mass Spectrum: JWST NIRSpec Integral Field Unit 3–5 μm Spectral Mapping of Five Young Protostars
Published in The Astrophysical journal (01-05-2024)“…Abstract Investigating Protostellar Accretion is a Cycle 1 JWST program using the NIRSpec+MIRI integral field units to obtain 2.9–28 μ m spectral cubes of five…”
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11
On the Magnetic Field Properties of Protostellar Envelopes in Orion
Published in Astrophysical journal. Letters (01-03-2024)“…Abstract We present 870 μ m polarimetric observations toward 61 protostars in the Orion molecular clouds with ∼400 au (1″) resolution using the Atacama Large…”
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12
Discovery of a Collimated Jet from the Low-luminosity Protostar IRAS 16253−2429 in a Quiescent Accretion Phase with the JWST
Published in Astrophysical journal. Letters (01-02-2024)“…Abstract Investigating Protostellar Accretion (IPA) is a JWST Cycle 1 GO program that uses NIRSpec integral field units and MIRI Medium Resolution Spectrograph…”
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The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars. I. Identifying and Characterizing the Protostellar Content of the OMC-2 FIR4 and OMC-2 FIR3 Regions
Published in The Astrophysical journal (20-11-2019)“…We present Atacama Large Millimeter/submillimeter Array (0.87 mm) and Very Large Array (9 mm) observations toward OMC-2 FIR4 and OMC-2 FIR3 within the Orion…”
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Journal Article -
14
The M Supergiant High-mass X-Ray Binary 4U 1954+31
Published in The Astrophysical journal (01-12-2020)“…Abstract The X-ray binary 4U 1954+31 has been classified as a low-mass X-ray binary containing an M giant and a neutron star (NS). It has also been included in…”
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Journal Article -
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Surveying the Giant H ii Regions of the Milky Way with SOFIA. IV. Sgr D, W42, and a Reassessment of the Giant H ii Region Census
Published in The Astrophysical journal (01-07-2022)“…Abstract This is the fourth paper exploring the infrared properties of giant H ii regions with the FORCAST instrument on the Stratospheric Observatory For…”
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Surveying the Giant H ii Regions of the Milky Way with SOFIA. III. W49A
Published in The Astrophysical journal (01-12-2021)“…Abstract We present our third set of results from our mid-infrared imaging survey of Milky Way Giant H ii regions with our detailed analysis of W49A, one of…”
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Journal Article -
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The Rate, Amplitude, and Duration of Outbursts from Class 0 Protostars in Orion
Published in Astrophysical journal. Letters (01-01-2022)“…Abstract At least half of a protostar’s mass is accreted in the Class 0 phase, when the central protostar is deeply embedded in a dense, infalling envelope. We…”
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Disks and Outflows in the Intermediate-mass Star-forming Region NGC 2071 IR
Published in The Astrophysical journal (01-07-2022)“…Abstract We present Atacama Large Millimeter Array band 6/7 (1.3 mm/0.87 mm) and Very Large Array Ka-band (9 mm) observations toward NGC 2071 IR, an…”
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Journal Article -
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The Transition Points in Young Stars and Young Star Clusters
Published 01-01-2019“…To study transitions of embedded clusters into open clusters, we present visible light spectroscopic observations of 190 young stars in the Cepheus OB3b young…”
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Dissertation -
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Orbital Parameters for Two Young Spectroscopic Binaries
Published 01-01-2013“…I report orbital parameters for two low-mass, pre-main sequence spectroscopic binaries VSB 111 and VSB 126. These systems were originally identified as…”
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Dissertation