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A total of 70 proposals requesting NSF-funded “open skies” time were submitted to the Green Bank Observatory’s Robert C. Byrd Green Bank Telescope (GBT) for the February 1, 2022 semester 22B deadline. The table below summarizes the approved observing programs. Listed are the PI name, proposal ID, proposal title, maximum hours approved, and proposal type (Regular, Triggered, Large or External). Proposals from previous semesters that were awarded time in the 22B semester are included. The table also includes HSA and GMVA proposals that were awarded time on the GBT as a VLBI station as well as proposals accepted via external agreements with CHANDRA, Hubble Space Telescope, FERMI, SOFIA, Swift, and XMM.

For each approved program, the Proposal Finder Tool will have access to its author, title, abstract and total approved hours.

A description of the Time Allocation Committee report for 22B can be found here.

PI	ID	Title	Hours	Type
Archibald, Anne	GBT22A-358	Continued Timing of a Millisecond Pulsar in a Stellar Triple System	50	Regular
Bastian, Tim	GBT22A-360	Probing the Inner Heliosphere with Pulsars: a Pilot Study	10	Regular
Bhakta, Deven	GBT22B-270	Searching for Globular Cluster Pulsars	10	Regular
Bilous, Anya	GBT22B-266	Zooming in on Pulsar Microstructure to understand Fast Radio Bursts	18	Regular
Bolatto, Alberto	GBT21B-024	GBT EDGE: A Representative Survey of the z=0 Universe with Full IFU Spectroscopy	300	Large
Bublitz, Jesse	GBT22B-250	Refining the Molecular Gas Enigma: Mapping NGC 6781 at 3mm	16.5	Regular
Busch, Michael	GBT22A-434	SC:Mapping molecular clouds in OH from diffuse to high-mass star forming regions	300	Large
Caleb, Manisha	VLBA22B-074	Probing the local environment of FRB 20190714A	6.5	Regular
Calore, Francesca	GBT22B-112	Follow-up of bulge MSP candidates detected by both Chandra and VLA	24.5	Regular
Cameron, Andrew	GBT22A-118	Continued observations of an eccentric, relativistic binary pulsar.	57	Regular
Dai, Shi	GBT22B-030	Monitoring the active repeater FRB 20190520B	24	Regular
Dong, Adam	GBT22B-213	GBT Follow-up of a Novel Repeating Galactic Transient Detected with CHIME/FRB	32	Regular
Emig, Kimberly	GBT22B-170	Recombination Lines from Diffuse Ionized Gas in the M82 Starburst	8.75	Regular
Fonseca, Emmanuel	GBT22B-215	Followup Timing of Low-declination GBNCC Pulsars	10	Regular
Frayer, David	GBT22B-162	GBT HI Observations of the GOALS LIRG 3C84	2	Regular
Freire, Paulo	GBT22B-143	Following two potentially super-massive pulsars in NGC 6624 and NGC 1851	13	Regular
Gallimore, Jack	VLBA22B-148	OH Masers in the Water Megamaser Disk of NGC 1068	12	Regular
Goldsmith, Paul	GBT22B-011	A Novel Technique for Electron Density Determination	18	Regular
Gorai, Prasanta	GBT22A-398	Exploring Carbon Chain Chemistry of Massive Protostars	22	Regular
Gupta, Harshal	GBT21B-316	Molecular Exploration of the Diffuse Interstellar mediUM (MEDIUM)	285.75	Large
Huang, Jane	GBT22B-085	Mapping the Delivery of Material to a Planet-forming Disk – copy	2	Regular
Issaoun, Sara	GMVA22B-249	Resolving Polarization in Sgr A* with GMVA+ALMA	10	Regular
Jones, Michael	GBT22B-064	Cold gas reservoirs of satellites in nearby Milky Way-like systems	96.5	Regular
Kooi, Jason	GBT22A-404	Probing Fluctuations in the Solar Wind with Pulsars: a Pilot Study	17	Regular
Kramer, Michael	GBT22B-231	Timing and General Relativity in the Double Pulsar System	101	Regular
Lockman, Felix	GBT22B-204	The Ophiuchus Superbubble — Connecting the Disk to the Halo	115.5	Regular
Lowe, Ian	GBT22B-068	A Multi-Scale, Multi-Wavelength Study of Dust in Molecular Cloud Filaments II	21.5	Regular
Luo, Jing	GBT22B-269	PSR J2108+45 with a massive companion and dense circumstellar environment	36.5	Regular
Maan, Yogesh	GBT22B-104	Transient radio emission from magnetars and connection with FRBs	23.75	Triggered
Margot, Jenan-Luc	GBT22B-209	A search for technosignatures around newly discovered exoplanets	2
Mason, Brian	GBT22B-242	Measuring 3mm Source Contamination in the ACT Galaxy Cluster Sample	18.75	Regular
Maureira, Maria Jose	GBT22B-180	CO freeze-out across a filamentary dense cloud forming a quadruple system	25.5	Regular
McKean, John	VLBA21B-289	Resolving the nature of quasar flux-ratio anomalies in gravitational lenses	60	Regular
Naidu, Shantanu	GBT22B-226	Bistatic Goldstone-GBT Radar Imaging of Binary Near-Earth Asteroid Didymos	25	Regular
O’Neil, Karen	GBT22B-065	Hunting for Massive Low Surface Brightness Galaxies	128.75	Regular
Park, Jongho	GMVA22B-100	A Multicolor View of the Black Hole Environment in M87	28	Regular
Ransom, Scott	GBT22B-256	Long Term Timing of 65 Recycled Pulsars in Bulge Globular Clusters	75	Regular
Redaelli, Elena	GBT22B-052	A crucial test for the mass of prestellar cores in a high-mass clump	2	Regular
Ribaudo, Joseph	GBT22A-430	The Baryonic Tully-Fisher Relation for Galaxies with Supernova Distances	132	Regular
Roberts, Hayley	GBT22B-060	Understanding the role of dense gas in the most extreme OH megamasers	34.75	Regular
Roth, Nathan	GBT22B-176	Measuring NH3 and OH in a Target of Opportunity Comet with the GBT	7.5	Triggered
Salas, Pedro	GBT22A-269	Probing the C+/C interface in the Orion Bar	16.5	Regular
Salas, Pedro	GBT22A-437	SC: GBT Diffuse Ionized Gas Survey at Low frequencies – GDIGS-Low	826	Large
Salome, Quentin	GBT22B-049	A survey of atomic gas in NLSy1 galaxies with X-ray Ultra Fast Outflows	31.25	Regular
Sanchez, Monica	GBT22B-228	Observations of Marginal Arecibo HI 21cm Detections in the Zone of Avoidance	4.5	Regular
Schmiedeke, Anika	GBT22B-191	Feeding a super-critical filament in a subsonic core	17.5	Regular
Scibelli, Samantha	GBT22A-435	SC: Q- Band Chemical Complexity Survey of Prestellar Core L1544	647	Large
Singal, Jack	GBT19A-083	How Bright is the Radio Sky? A 310 MHz Absolute Map	30	Regular
Song, Yiqing	GBT22B-248	Mapping HCN and HCO+ in Local Luminous Infrared Mergers	19.5	Regular
Spekkens, Kristine	GBT22B-139	Atomic Gas in the Host Galaxies of Gravitational Wave Events – LVK O4	40	Triggered
Spezzano, Silvia	GBT22B-040	Exploring the chemistry of Sulfur towards the young starless core L1521E	18	Regular
Sridharan, T.K.	GBT22A-366	Path to Precision Astrochemistry with Magnetars II – mm-wave Observations	33	Regular
Stark, David	GBT22A-325	Understanding diverse HI depletion times in MaNGA star forming galaxies	79.25	Regular
Stark, David	GBT22A-436	SC: Robust Gas Measurements for BreakBRD Galaxies	206.5	Large
Traianou, Efthalia	GMVA21B-164	Moving and stationary shocks interaction after a gamma-ray flare in TXS2013+370	27	Regular
Valdivia Mena, Maria Teresa	GBT22B-163	Mind the gap: connecting the scales between filaments and protostars	18	Regular
Wen, Di	G22A001	A magnified view of an ionised scattering medium in a z= 1.145 late- type galaxy	36	Regular
Wolszczan, Alexander	GBT22B-200	A search for planets around white dwarfs	18	Regular
Yang, Chentao	GBT22B-020	Confirming the nature of a 380GHz H2O maser disk in a lensed quasar at z=3.91	14	Regular

19th – 21st September 2022, Green Bank, WV

Green Bank Observatory (GBO) is planning a workshop on K-band science, past, present and future, covering science that has utilized/will utilize the Green Bank Telescope (GBT). The goals of this workshop are threefold:

1. Celebrate the success of prior observing campaigns and the K-band Focal Plane Array (KFPA), while encouraging use of the available archival data;
2. Poll the community on the science being done or proposed at K-band to establish if the GBT is able to meet those needs;
3. Seek community input on the future direction of K-band science and instrumentation at Green Bank.

Please use the form below to pre-register for the conference. In July 2022 we will invite a shortlist of pre-registrants to attend the conference up to the capacity of the observatory site. We intend to provide virtual access to some portions of the workshop, although the exact format has yet to be determined.

Scientific Rationale

With the sensitivity arising from the large collecting area of the GBT and clean radio-frequency environment of the Green Bank site, the KFPA has been a popular instrument among GBT users, including those in the areas of galaxy evolution, planetary systems, as well as astrochemistry. The primary use of the KFPA, however, has been to observe star-forming material in Galactic clouds. In the last few years three separate large-scale surveys have used the GBT and KFPA to map out the moderately-dense gas tracer of ammonia in our galaxy. These surveys (KEYSTONE, GAS and RAMPS: Keown et al, 2019; Friesen et al, 2017 & Hogge et al, 2018, respectively) are now complete and the data are becoming available to the public. Green Bank Observatory is also now considering what potential future instrumentation might best serve the astronomical community at K-band. A white paper to the decadal survey recently proposed a phased-array feed and the Astro2020 panel recommendations included radio cameras as one of four key areas in which “outstanding opportunities exist for new mid-scale facilities to address compelling science questions.” 

It is timely for GBO to host scientists working at the K-band range of frequencies, evaluate the current state of the science and seek new directions in both the scientific research and instrumentation capabilities.

Recordings

All presentations and discussions were recorded, and will be available here:

Scientific Organizing Committee

• Head: Larry Morgan (GBO) – ude.o1665159139arn@n1665159139agrom1665159139l1665159139
• Will Armentrout (GBO)
• Natalie Butterfield (Villanova University)
• Tierra Candelaria (NRAO)
• Ilsa Cooke (University of British Columbia)
• Rachel Friesen (University of Toronto)
• Jim Jackson (GBO)
• Pedro Salas (GBO)
• Ci Xue (MIT)

Structure of the Workshop

In the tradition of past Green Bank workshops the total number of participants will be limited (~50 people) which allows for candid discussions. The workshop will be held over ~3 days. Only a limited number of talks will be given which will allow ample time for discussion. Talks given will focus on survey results and the dissemination of those data, new results and general reviews. There will be a session dedicated to future instrumentation, both to evaluate community requirements and to explore the potential options for the GBT. There will be space and time for poster presentations. The detailed schedule of the workshop, such as the number and length of talks will be determined at a later date. We hope to provide virtual access to all main talks; other aspects of the workshop (i.e. panels and evening lectures) may remain in-person only.

Topics

• GBT Surveys – RAMPS, GAS, KEYSTONE, etc.
• Astrochemistry 
• Extragalactic Observations – Masers
• Other K-Band Projects
• Data Reduction Pipelines and Archive Data Products
• Instrumentation – Current and Future

Local Organizing Committee

• Head: Pedro Salas
• Mark Barnes
• Brenne Gregory
• Sue Shears
• Anika Schmiedeke
• Madge Vosteen

List of Participants

Kiran Adhikari (Tribhuvan University)
Jordan Guerra Aguilera (Villanova University)
Kevin Bandura (West Virginia University)
David Blank (USQ)
Jim Braatz (NRAO)
Andrew Burkhardt (Worcester State University)
Natalie Butterfield (NRAO)
Alex Byrne (Massachusetts Institute of Technology)
Victoria Catlett (Green Bank Observatory)
Shubhadip Chakraborty (IPR, Université de Rennes 1)
Ilsa Cooke (University of British Columbia)
Neeraj Dapurkar (Fergusson College, Pune)
David Eden (Armagh Observatory and Planetarium)
Golshan Ejlali (IPM)
Zachary Fried (MIT)
Harshal Gupta (National Science Foundation)
Jim Jackson (GBO)
Simranjeet Kaur (IISER Mohali)
Helen Kirk (Herzberg Astronomy & Astrophysics Resesarch Centre, National Research Council of Canada)
Juan Li (Shanghai Astronomical Observatory, CAS)
Xing Lu (Shanghai Astronomical Observatory)
Brett McGuire (MIT)
Anthony Minter (Green Bank Observatory)
Larry Morgan (Green Bank Observatory)
Rahul Musale (University of Pune)
Jaime Pineda (MPE, Germany)
Jian-Jie Qiu (Sun Yat-Sen University)
Federico Radiconi (University of Rome, La Sapienza)
Anthony Remijan (NRAO)
Pedro Salas (GBO)
Anika Schmiedeke (GBO)
Samantha Scibelli (University of Arizona)
Sue Shears (Green Bank Observatory)
Bob Simon (GBO)
Brian Svoboda (NRAO)
Hannah Toru (Shay) (MIT)
James Urquhart (University of Kent)
Karl Warnick (Brigham Young University)
Ellie White (Green Bank Observatory)
Glenn White (Rutherford Lab UK, and Open University, UK)
Steve White (GBO)
Jinjin Xie (Shanghai Astronomical Observatory)
Ceci Xue (MIT)