YEBES OBSERVATORY
A Spanish Scientific and Technical Infrastructure

Single-dish observed proposals for the 40m telescope in2025

Proposal ID Period (*) Time (h) Title PI
25A002 25A 144.0 SiO maser monitoring in post-AGB disks. Part II Iván Gallardo Cava
25A003 25A 2.0 Glycolamide survey towards dense cores in the Orion B9 filament Oskari Miettinen
25A004 25A 27.2 A Q-band line survey towards supernova remnant W28 Tianyu Tu
25A005 25A 39.0 Studies on the inheritance of large carbon species to the next-generation star-forming regions -a case study for WR140- Kotomi Taniguchi
25A006 25A 53.9 Simultaneous measurements on the isotope ratios of 12C/13C, 14N/15N and 18O/17O in our Galaxy Jialiang Chen
25A008 25A 45.0 Towards Tracking Binary SMBH Orbits Using Global K/Q/W Simultaneous VLBI Hyunwook Ro
25A010 25A 8.0 Linking the fragmentation of clumps to the evolutionary stages Han-Tsung Lee
25A012 25A 68.7 From Droplets to Dense Cores - a Chemical and Kinematic Analysis of Future Star Formation in the Taurus Molecular Cloud Lucille Steffes
25A013 25A 14.0 Searching for DCN 1-0, DNC 1-0 and DCO+ 1-0 in early-stage massive star-forming regions Yuqiang li
25A014 25A 46.1 Mapping DCN 1-0, DNC 1-0 and DCO+ 1-0 in late-stage massive star-forming regions Yuqiang li
25A015 25A 19.2 Explore the existence of DCO+ and N2D+ on large scales at low temperatures in the residual envelope in Orion KL Yuqiang li
25A018 25A 64.8 Sulphur isotopic fractionation in low-mass star-forming regions Gisela Esplugues
25A019 25A 217.8 Is the widely-distributed narrow SiO tracing different molecular cloud formation scenarios? Wonju Kim
25A020 25A 45.0 Constraining gas and grain sulfur chemistry in star forming regions Angèle Taillard
25A024 25A 30.0 On the origin of the extended velocity features in the Milky Way (resubmission) Yan Gong
25A025 25A 200.0 Where and when are PAHs formed in evolved stars? Jose Cernicharo
25A026 25A 110.0 Exploration of the diffuse interstellar gas composition : a confirmation gerin
25A028 25A 10.0 Accurate measurements of the atmospheric spectrum accessible to the Yebes-40m for model improvements Juan Ramón Pardo Carrión
25A029 25A 45.0 A high-sensitivity molecular spectral survey of young stellar objects at 7 mm: a pilot study Pablo Rivière
25A030 25A 48.4 Investigatinting the chemical composition evolution of high-mass star-forming regions Jialiang Chen
25B002 25B 21.0 Linking the fragmentation of clumps to the evolutionary stages Han-Tsung Lee
25B003 25B 66.2 Multi scale dynamics in high-mass star-forming regions Chiara Mininni
25B004 25B 39.8 Chemical feedback of massive stars on molecular clouds: NGC 7538 Tianyu Tu
25B007 25B 53.3 Investigating the cosmic ray ionization rate in the outer Galaxy using HCO+ and its isotopologues Miguel Figueira
25B009 25B 27.2 A Q-band line survey towards supernova remnant W28 (resubmission) Tianyu Tu
25B010 25B 27.5 Shock chemistry of carbon-chain molecules HC3N and HC5N in the circumstellar envelopes of evolved stars Jian-Jie Qiu
25B012 25B 101.0 Broad Band chemical characterization of a large sample of starless and protostellar cold sources Jose Cernicharo
25B013 25B 49.5 Search for Methanol and Carbon-Chain Molecules in Dense Cores and Filaments of the Polaris Molecular Cloud Tadeus Carl
25B014 25B 63.7 Simultaneous measurements on the carbon, nitrogen and sulfur isotope ratios in our Galaxy Jialiang Chen
25B015 25B 46.7 Searching for DCN 1-0, DNC 1-0 and DCO+ 1-0 in early-stage massive star-forming regions Yuqiang li
25B016 25B 16.0 The temperature measurement of CH3CCH in dense celestial regions Qian Huang
25B017 25B 93.0 Extreme low star formation in The Brick: characterization of molecular tracers Miriam G. Santa-Maria
25B018 25B 59.3 A high-sensitivity molecular spectral survey of Class 0 sources at 7 mm Pablo Rivière
25B019 25B 217.8 Is the widely-distributed narrow SiO tracing different molecular cloud formation scenarios? Wonju Kim
25B020 25B 37.0 Towards tracking down binary SMBH orbits using global K/Q/W simultaneous VLBI Hyunwook Ro
25B021 25B 130.0 Circumstellar chemistry in apparently molecule absent evolved objects Huertas Roldán
25B023 25B 127.5 The role of UV radiation in the sulphur budget of the ISM Gisela Esplugues
25B026 25B 4.0 A Study on the Radio Properties and Emission Mechanisms of TDEs Kalyani
25B028 25B 89.5 Deep Mapping of Extended Precursor Prebiotic Chemistry in NGC1333 Samantha Scibelli
25B029 25B 60.0 Origin of DCO+ in cold molecular clouds Fu Mo
25B031 25B 25.8 Shocks in the dark: when quiescent clouds are not quiescent at all Giuliana Cosentino
25B032 25B 100.0 Unveiling the chemical origin of interstellar CO2 through HOCO+/HCOOH ratios German Molpeceres de Diego
25B033 25B 160.0 The Q-band CMZ Exploratory Survey with Yebes 40m Izaskun Jiménez
25B035 25B 60.0 Y-CHEMICO: Yebes study of the Chemical Evolution of MassIve star-forming COres Víctor M. Rivilla
25B039 25B 68.7 A deep, unbiased 7-10mm molecular line survey of the Fireworks Galaxy Maria Jesus Jimenez Donaire
25B041 25B 9.0 Salt in the ISM Miriam G. Santa-Maria
25B042 25B 46.8 Properties of Dense Gas along one arm in IC 342 Guo
25B043 25B 25.2 Extended Green Objects in the Q Band: A Molecular Line Survey Ankan Das
25B044 25B 60.0 Tracing the organic complexity in buried nuclei: An extragalactic molecular inventory Ismael Garcia-Bernete
25B045 25B 68.7 From Droplets to Dense Cores - a Chemical and Kinematic Analysis of Future Star Formation in the Taurus Molecular Cloud Lucille Steffes
25B046 25B 40.0 3mm spectroscopic mapping observation toward S255 to S257 region Shu Liu
25B047 25B 20.0 Imaging of a newly found ring-like sructure in the Central Molecular Zone Juan Li
25B048 25B 110.0 Exploration of the diffuse interstellar gas composition : a confirmation gerin
25B049 25B 200.0 Where and when are PAHs formed in evolved stars? Jose Cernicharo
25D003 25D 20.0 QK-band observations of IRAS 18135-1456 Paula Muñoz Cutanda

Number of proposals this year: 55
Total of hours observed this year: 3582.3

(*) Period:
A: First semestre (1st Feb 2025 - 31st Jul 2025).
B: Second semestre (1st Aug 2025 - 31st Jan 2026).
D: Director's Discretionary Time (1st Feb 2025 - 31st Jan 2026).