346 citations · 2.9k across the 27 of their papers we have counts for
27 papers
Four annular structures in a protostellar disk less than 500,000 years old
Dominique M. Segura-Cox, Anika Schmiedeke, Jaime E. Pineda +8
Annular structures, or rings and gaps, in disks around pre-main sequence stars have been detected in abundance towards Class II objects ~1,000,000 years in age. These structures ar…
Dust Polarization in Four Protoplanetary Disks at 3 mm: Further Evidence of Multiple Origins
Rachel E. Harrison, Leslie W. Looney, Ian W. Stephens +7
We present polarimetric observations of four Class II protoplanetary disks (DG Tau, Haro 6-13, RY Tau, and MWC 480) taken with the Atacama Large Millimeter/submillimeter Array (ALM…
The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Perseus Protostars. VI. Characterizing the Formation Mechanism for Close Multiple Systems
John J. Tobin, Leslie W. Looney, Zhi-Yun Li +8
We present Atacama Large Millimeter/submillimeter Array (ALMA) observations of multiple protostar systems in the Perseus molecular cloud previously detected by the Karl G. Jansky V…
The VLA Nascent Disk and Multiplicity Survey of Perseus Protostars (VANDAM). V. 18 Candidate Disks around Class 0 and I Protostars in the Perseus Molecular Cloud
Dominique M. Segura-Cox, Leslie W. Looney, John J. Tobin +8
We present the full disk-fit results VANDAM survey of all Class 0 and I protostars in the Perseus molecular cloud. We have 18 new protostellar disk candidates around Class 0 and I…
The VLA Nascent Disk And Multiplicity Survey of Perseus Protostars (VANDAM). IV. Free-Free Emission from Protostars: Links to Infrared Properties, Outflow Tracers, and Protostellar Disk Masses
Łukasz Tychoniec, John J. Tobin, Agata Karska +11
Emission from protostars at centimeter radio wavelengths has been shown to trace the free-free emission arising from ionizing shocks as a result of jets and outflows driven by prot…
ALMA Observations of Polarized 872 m Dust Emission from the Protostellar Systems VLA 1623 and L1527
Robert J. Harris, Erin G. Cox, Leslie W. Looney +8
We present high-sensitivity ( mJy, mJy), high-resolution (0.12-0.2 arcsec) observations of polarized 872 m dust emission from the young multiple…
The Millimeter Continuum Size-Frequency Relationship in the UZ Tau E Disk
Anjali Tripathi, Sean M. Andrews, Tilman Birnstiel +17
We present high spatial resolution observations of the continuum emission from the young multiple star system UZ Tau at frequencies from 6 to 340 GHz. To quantify the spatial varia…
Dust Polarization Toward Embedded Protostars in Ophiuchus with ALMA. I. VLA 1623
Sarah I. Sadavoy, Philip C. Myers, Ian W. Stephens +7
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 protobinary source…
ALMA's Polarized View of 10 Protostars in the Perseus Molecular Cloud
Erin G. Cox, Robert J. Harris, Leslie W. Looney +4
We present 870 m ALMA dust polarization observations of 10 young Class 0/I protostars in the Perseus Molecular Cloud. At 0.35 (80 au) resolution, all of our sources sh…
The VLA Nascent Disk And Multiplicity Survey of Perseus Protostars (VANDAM). III. Extended Radio Emission from Protostars in Perseus
Łukasz Tychoniec, John J. Tobin, Agata Karska +8
Centimeter continuum emission from protostars offers insight into the innermost part of the outflows, as shock-ionized gas produces free-free emission. We observed a complete popul…
Protoplanetary Disks in Ophiuchus as Seen From ALMA
Erin G. Cox, Robert J. Harris, Leslie W. Looney +6
We present a high angular resolution (), high sensitivity ( mJy) survey of the 870 m continuum emission from the circumstellar material aroun…
A Triple Protostar System Formed via Fragmentation of a Gravitationally Unstable Disk
John Tobin, Kaitlin Kratter, Magnus Persson +9
Binary and multiple star systems are a frequent outcome of the star formation process, and as a result, almost half of all sun-like stars have at least one companion star. Theoreti…
Spiral Density Waves in a Young Protoplanetary Disk
Laura M. Pérez, John M. Carpenter, Sean M. Andrews +20
Gravitational forces are expected to excite spiral density waves in protoplanetary disks, disks of gas and dust orbiting young stars. However, previous observations that showed spi…
Revolutionizing our View of Protostellar Multiplicity and Disks: The VLA Nascent Disk and Multiplicity (VANDAM) Survey of the Perseus Molecular Cloud
John J. Tobin, Leslie W. Looney, Zhi-Yun Li +9
There is substantial evidence for disk formation taking place during the early stages of star formation and for most stars being born in multiple systems; however, protostellar mul…
Disk Polarization From Both Emission and Scattering of Magnetically Aligned Grains: The Case of NGC 1333 IRAS4A1
Haifeng Yang, Zhi-Yun Li, Leslie W. Looney +5
Dust polarization in millimeter (and centimeter) has been mapped in disks around an increasing number of young stellar objects. It is usually thought to come from emission by magne…
The VLA Nascent Disk and Multiplicity Survey of Perseus Protostars (VANDAM). II. Multiplicity of Protostars in the Perseus Molecular Cloud
John J. Tobin, Leslie W. Looney, Zhi-Yun Li +8
We present a multiplicity study of all known protostars (94) in the Perseus molecular cloud from a Karl G. Jansky Very Large Array (VLA) survey at Ka-band (8 mm and 1 cm) and C-ban…
The VLA Nascent Disk and Multiplicity Survey: First Look at Resolved Candidate Disks around Class 0 and I Protostars in the Perseus Molecular Cloud
Dominique M. Segura-Cox, Robert J. Harris, John J. Tobin +8
We present the first dust emission results toward a sample of seven protostellar disk candidates around Class 0 and I sources in the Perseus molecular cloud from the VLA Nascent Di…
Mass Assembly of Stellar Systems and Their Evolution with the SMA (MASSES). Multiplicity and the Physical Environment in L1448N
Katherine I. Lee, Michael M. Dunham, Philip C. Myers +18
We present continuum and molecular line observations at 230 GHz and 345 GHz from the Sub-millimeter Array (SMA) toward three protostars in the Perseus L1448N region. The data are f…
High Resolution 8 mm and 1 cm Polarization of IRAS 4A from the VLA Nascent Disk and Multiplicity (VANDAM) Survey
Erin G. Cox, Robert J. Harris, Leslie W. Looney +10
Magnetic fields can regulate disk formation, accretion and jet launching. Until recently, it has been difficult to obtain high resolution observations of the magnetic fields of the…
Grain Growth in the Circumstellar Disks of the Young Stars CY Tau and DoAr 25
Laura M. Pérez, Claire J. Chandler, Andrea Isella +19
We present new results from the Disks@EVLA program for two young stars: CY Tau and DoAr 25. We trace continuum emission arising from their circusmtellar disks from spatially resolv…
The VLA Nascent Disk And Multiplicity (VANDAM) Survey of Perseus Protostars. Resolving the Sub-Arcsecond Binary System in NGC 1333 IRAS2A
John J. Tobin, Michael M. Dunham, Leslie W. Looney +11
We are conducting a Jansky 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 Cloud, providing resolution down to $\si…
Resolved Multifrequency Radio Observations of GG Tau
Sean M. Andrews, Claire J. Chandler, Andrea Isella +20
We present sub-arcsecond resolution observations of continuum emission associated with the GG Tau quadruple star system at wavelengths of 1.3, 2.8, 7.3, and 50 mm. These data confi…
On the structure of the transition disk around TW Hya
J. Menu, R. van Boekel, T. Henning +25
For over a decade, the structure of the inner cavity in the transition disk of TW Hydrae has been a subject of debate. Modeling the disk with data obtained at different wavelengths…
Constraints on the Radial Variation of Grain Growth in the AS 209 Circumstellar Disk
Laura M. Pérez, John M. Carpenter, Claire J. Chandler +18
We present dust continuum observations of the protoplanetary disk surrounding the pre-main sequence star AS 209, spanning more than an order of magnitude in wavelength from 0.88 to…