Search Results - "Sadavoy, Sarah I."

THE VLA NASCENT DISK AND MULTIPLICITY SURVEY OF PERSEUS PROTOSTARS (VANDAM). II. MULTIPLICITY OF PROTOSTARS IN THE PERSEUS MOLECULAR CLOUD by Tobin, John J., Looney, Leslie W., Li, Zhi-Yun, Chandler, Claire J., Dunham, Michael M., Segura-Cox, Dominique, Sadavoy, Sarah I., Melis, Carl, Harris, Robert J., Kratter, Kaitlin, Perez, Laura

“…ABSTRACT We present a multiplicity study of all known protostars (94) in the Perseus molecular cloud from a Karl G. Jansky Very Large Array survey at Ka-band…”
Get full text

The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Orion Protostars. II. A Statistical Characterization of Class 0 and Class I Protostellar Disks by Tobin, John J., Sheehan, Patrick D., Megeath, S. Thomas, Díaz-Rodríguez, Ana Karla, Offner, Stella S. R., Murillo, Nadia M., van 't Hoff, Merel L. R., van Dishoeck, Ewine F., Osorio, Mayra, Anglada, Guillem, Furlan, Elise, Stutz, Amelia M., Reynolds, Nickalas, Karnath, Nicole, Fischer, William J., Persson, Magnus, Looney, Leslie W., Li, Zhi-Yun, Stephens, Ian, Chandler, Claire J., Cox, Erin, Dunham, Michael M., Tychoniec, ukasz, Kama, Mihkel, Kratter, Kaitlin, Kounkel, Marina, Mazur, Brian, Maud, Luke, Patel, Lisa, Perez, Laura, Sadavoy, Sarah I., Segura-Cox, Dominique, Sharma, Rajeeb, Stephenson, Brian, Watson, Dan M., Wyrowski, Friedrich

“…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…”
Get full text

Zooming in on Individual Star Formation: Low- and High-Mass Stars by Rosen, Anna L., Offner, Stella S. R., Sadavoy, Sarah I., Bhandare, Asmita, Vázquez-Semadeni, Enrique, Ginsburg, Adam

“…Star formation is a multi-scale, multi-physics problem ranging from the size scale of molecular clouds ( ∼ 10 s pc) down to the size scales of dense prestellar…”
Get full text

Hierarchical Fragmentation in the Perseus Molecular Cloud: From the Cloud Scale to Protostellar Objects by Pokhrel, Riwaj, Myers, Philip C., Dunham, Michael M., Stephens, Ian W., Sadavoy, Sarah I., Zhang, Qizhou, Bourke, Tyler L., Tobin, John J., Lee, Katherine I., Gutermuth, Robert A., Offner, Stella S. R.

“…We present a study of hierarchical structure in the Perseus molecular cloud, from the scale of the entire cloud ( pc) to smaller clumps (∼1 pc), cores…”
Get full text

Alignment between Protostellar Outflows and Filamentary Structure by Stephens, Ian W., Dunham, Michael M., Myers, Philip C., Pokhrel, Riwaj, Sadavoy, Sarah I., Vorobyov, Eduard I., Tobin, John J., Pineda, Jaime E., Offner, Stella S. R., Lee, Katherine I., Kristensen, Lars E., Jørgensen, Jes K., Goodman, Alyssa A., Bourke, Tyler L., Arce, Héctor G., Plunkett, Adele L.

“…We present new Submillimeter Array (SMA) observations of CO(2-1) outflows toward young, embedded protostars in the Perseus molecular cloud as part of the Mass…”
Get full text

Magnetic Field Alignment Relative to Multiple Tracers in the High-mass Star-forming Region RCW 36 by Bij, Akanksha, Fissel, Laura M., Bonne, Lars, Schneider, Nicola, Berthoud, Marc, Lee, Dennis, Novak, Giles A., Sadavoy, Sarah I., Pillai, Thushara G. S., Cunningham, Maria, Jones, Paul, Simon, Robert

“…Abstract We use polarization data from SOFIA HAWC+ to investigate the interplay between magnetic fields and stellar feedback in altering gas dynamics within…”
Get full text

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 by Tobin, John J., Sheehan, Patrick D., Reynolds, Nickalas, Megeath, S. Thomas, Osorio, Mayra, Anglada, Guillem, Díaz-Rodríguez, Ana Karla, Furlan, Elise, Kratter, Kaitlin M., Offner, Stella S. R., Looney, Leslie W., Kama, Mihkel, Li, Zhi-Yun, van ’t Hoff, Merel L. R., Sadavoy, Sarah I., Karnath, Nicole

“…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 ⊙ )…”
Get full text

Finding Substructures in Protostellar Disks in Ophiuchus by Michel, Arnaud, Sadavoy, Sarah I., Sheehan, Patrick D., Looney, Leslie W., Cox, Erin G., Tobin, John J., van der Marel, Nienke, Segura-Cox, Dominique M.

“…Abstract High-resolution, millimeter observations of disks at the protoplanetary stage reveal substructures such as gaps, rings, arcs, spirals, and cavities…”
Get full text

The VLA/ALMA Nascent Disk And Multiplicity (VANDAM) Survey of Orion Protostars. V. A Characterization of Protostellar Multiplicity by Tobin, John J., Offner, Stella S. R., Kratter, Kaitlin M., Megeath, S. Thomas, Sheehan, Patrick D., Looney, Leslie W., Diaz-Rodriguez, Ana Karla, Osorio, Mayra, Anglada, Guillem, Sadavoy, Sarah I., Furlan, Elise, Segura-Cox, Dominique, Karnath, Nicole, van ’t Hoff, Merel L. R., van Dishoeck, Ewine F., Li, Zhi-Yun, Sharma, Rajeeb, Stutz, Amelia M., Tychoniec, Łukasz

“…Abstract We characterize protostellar multiplicity in 20 Current address: Niels Bohr Institute, University of Copenhagen, Øster Voldgade 5–7, DK-1350,…”
Get full text

AN ALMA SEARCH FOR SUBSTRUCTURE, FRAGMENTATION, AND HIDDEN PROTOSTARS IN STARLESS CORES IN CHAMAELEON I by Dunham, Michael M., Offner, Stella S. R., Pineda, Jaime E., Bourke, Tyler L., Tobin, John J., Arce, Héctor G., Chen, Xuepeng, Francesco, James Di, Johnstone, Doug, Lee, Katherine I., Myers, Philip C., Price, Daniel, Sadavoy, Sarah I., Schnee, Scott

“…ABSTRACT We present an Atacama Large Millimeter/submillimeter Array (ALMA) 106 GHz (Band 3) continuum survey of the complete population of dense cores in the…”
Get full text

The Disk Orientations of Perseus Protostellar Multiples at ∼8 au Resolution by Reynolds, Nickalas K., Tobin, John J., Sheehan, Patrick D., Sadavoy, Sarah I., Looney, Leslie W., Kratter, Kaitlin M., Li, Zhi-Yun, Segura-Cox, Dominique M., Kaib, Nathan A.

“…Abstract We present a statistical characterization of circumstellar disk orientations toward 12 protostellar multiple systems in the Perseus molecular cloud…”
Get full text

The VLA Nascent Disk And Multiplicity Survey of Perseus Protostars (VANDAM). III. Extended Radio Emission from Protostars in Perseus by Tychoniec, ukasz, Tobin, John J., Karska, Agata, Chandler, Claire, Dunham, Michael M., Li, Zhi-Yun, Looney, Leslie W., Segura-Cox, Dominique, Harris, Robert J., Melis, Carl, Sadavoy, Sarah I.

“…Centimeter continuum emission from protostars offers insight into the innermost part of the outflows, as shock-ionized gas produces free-free emission. We…”
Get full text

THE VLA NASCENT DISK AND MULTIPLICITY (VANDAM) SURVEY OF PERSEUS PROTOSTARS. RESOLVING THE SUB-ARCSECOND BINARY SYSTEM IN NGC 1333 IRAS2A by Tobin, John J, Dunham, Michael M, Looney, Leslie W, Li, Zhi-Yun, Chandler, Claire J, Segura-Cox, Dominique, Sadavoy, Sarah I, Melis, Carl, Harris, Robert J, Perez, Laura M, Kratter, Kaitlin, Jorgensen, Jes K, Plunkett, Adele L, Hull, Charles L H

“…We are conducting a Jansky Very Large Array (VLA) Ka-band (8 mm and 1 cm) and C-band (4 cm and 6.4 cm) survey of all known protostars in the Perseus Molecular…”
Get full text

The Twisted Magnetic Field of the Protobinary L483 by Cox, Erin G., Novak, Giles, Sadavoy, Sarah I., Looney, Leslie W., Lee, Dennis, Berthoud, Marc, Bourke, Tyler L., Coudé, Simon, Encalada, Frankie, Fissel, Laura M., Harrison, Rachel, Houde, Martin, Li, Zhi-Yun, Myers, Philip C., Pattle, Kate, Santos, Fabio P., Stephens, Ian W., Wang, Hailin, Wolf, Sebastian

“…Abstract We present H -band (1.65 μ m) and SOFIA HAWC+ 154 μ m polarization observations of the low-mass core L483. Our H -band observations reveal a magnetic…”
Get full text

Intensity-corrected Herschel Observations of Nearby Isolated Low-mass Clouds by Sadavoy, Sarah I., Keto, Eric, Bourke, Tyler L., Dunham, Michael M., Myers, Philip C., Stephens, Ian W., Di Francesco, James, Webb, Kristi, M. Stutz, Amelia, Launhardt, Ralf, J. Tobin, John

“…Abstract We present intensity-corrected Herschel maps at 100, 160, 250, 350, and 500 μ m for 56 isolated low-mass clouds. We determine the zero-point…”
Get full text

Acceleration and Substructure Constraints in a Quasar Outflow by Hall, Patrick B, Sadavoy, Sarah I, Hutsemekers, Damien, Everett, John E, Rafiee, Alireza

“…We present observations of probable line-of-sight acceleration of a broad absorption trough of C IV in the quasar SDSS 3024221.87+004912.6. We also discuss how…”
Get full text

Dust Polarization toward Embedded Protostars in Ophiuchus with ALMA. I. VLA 1623 by Sadavoy, Sarah I., Myers, Philip C., Stephens, Ian W., Tobin, John, Commerçon, Benoît, Henning, Thomas, Looney, Leslie, Kwon, Woojin, Segura-Cox, Dominique, Harris, Robert

“…We present high-resolution (∼30 au) ALMA Band 6 dust polarization observations of VLA 1623. The VLA 1623 data resolve compact ∼40 au inner disks around the two…”
Get full text

A triple protostar system formed via fragmentation of a gravitationally unstable disk by Tobin, John J., Kratter, Kaitlin M., Persson, Magnus V., Looney, Leslie W., Dunham, Michael M., Segura-Cox, Dominique, Li, Zhi-Yun, Chandler, Claire J., Sadavoy, Sarah I., Harris, Robert J., Melis, Carl, Pérez, Laura M.

“…Observations of the triple protostar system L1448 IRS3B support the hypothesis that companion stars can form because of gravitational instability in a…”
Get full text

A Millimeter-multiwavelength Continuum Study of VLA 1623 West by Michel, Arnaud, Sadavoy, Sarah I., Sheehan, Patrick D., Looney, Leslie W., Cox, Erin G.

“…Abstract VLA 1623 West is an ambiguous source that has been described as a shocked cloudlet as well as a protostellar disk. We use deep ALMA 1.3 and 0.87 mm…”
Get full text

The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Perseus Protostars. VI. Characterizing the Formation Mechanism for Close Multiple Systems by Tobin, John J., Looney, Leslie W., Li, Zhi-Yun, Sadavoy, Sarah I., Dunham, Michael M., Segura-Cox, Dominique, Kratter, Kaitlin, Chandler, Claire J., Melis, Carl, Harris, Robert J., Perez, Laura

“…We present Atacama Large Millimeter/submillimeter Array observations of multiple protostar systems in the Perseus molecular cloud, previously detected by the…”
Get full text