YEBES OBSERVATORY
A Spanish Scientific and Technical Infrastructure

Single-dish approved proposals for the 40m telescope in 2025

Proposals are evaluated by scientific merit and are classifed in ranks A, B and C. Proposals in rank A are guaranteed to be observed, proposals in rank B may be observed if there is available telescope time and proposals in rank C do not have enough quality to be observed.

First Semester - 2025A

Proposal ID Rank Title PI
25A002 A SiO maser monitoring in post-AGB disks. Part II Iván Gallardo Cava
25A004 B A Q-band line survey towards supernova remnant W28 Tianyu Tu
25A005 A Studies on the inheritance of large carbon species to the next-generation star-forming regions -a case study for WR140- Kotomi Taniguchi
25A006 A Simultaneous measurements on the isotope ratios of 12C/13C, 14N/15N and 18O/17O in our Galaxy Jialiang Chen
25A008 A Towards Tracking Binary SMBH Orbits Using Global K/Q/W Simultaneous VLBI Hyunwook Ro
25A010 A Linking the fragmentation of clumps to the evolutionary stages Han-Tsung Lee
25A012 A From Droplets to Dense Cores - a Chemical and Kinematic Analysis of Future Star Formation in the Taurus Molecular Cloud Lucille Steffes
25A018 A Sulphur isotopic fractionation in low-mass star-forming regions Gisela Esplugues
25A019 B Is the widely-distributed narrow SiO tracing different molecular cloud formation scenarios? Wonju Kim
25A020 A Constraining gas and grain sulfur chemistry in star forming regions Angèle Taillard
25A024 A On the origin of the extended velocity features in the Milky Way (resubmission) Yan Gong
25A025 B Where and when are PAHs formed in evolved stars? Jose Cernicharo
25A026 A Exploration of the diffuse interstellar gas composition : a confirmation gerin
25A028 A Accurate measurements of the atmospheric spectrum accessible to the Yebes-40m for model improvements Juan Ramón Pardo Carrión
25A029 A A high-sensitivity molecular spectral survey of young stellar objects at 7 mm: a pilot study Pablo Rivière
25A030 B Investigatinting the chemical composition evolution of high-mass star-forming regions Jialiang Chen

Second Semester - 2025B

Proposal ID Rank Title PI
25B002 B Linking the fragmentation of clumps to the evolutionary stages Han-Tsung Lee
25B003 B Multi scale dynamics in high-mass star-forming regions Chiara Mininni
25B007 A Investigating the cosmic ray ionization rate in the outer Galaxy using HCO+ and its isotopologues Miguel Figueira
25B009 B A Q-band line survey towards supernova remnant W28 (resubmission) Tianyu Tu
25B012 B Broad Band chemical characterization of a large sample of starless and protostellar cold sources Jose Cernicharo
25B013 B Search for Methanol and Carbon-Chain Molecules in Dense Cores and Filaments of the Polaris Molecular Cloud Tadeus Carl
25B015 B Searching for DCN 1-0, DNC 1-0 and DCO+ 1-0 in early-stage massive star-forming regions Yuqiang li
25B016 A The temperature measurement of CH3CCH in dense celestial regions Qian Huang
25B017 A Extreme low star formation in The Brick: characterization of molecular tracers Miriam G. Santa-Maria
25B018 B A high-sensitivity molecular spectral survey of Class 0 sources at 7 mm Pablo Rivière
25B020 A Towards tracking down binary SMBH orbits using global K/Q/W simultaneous VLBI Hyunwook Ro
25B021 B Circumstellar chemistry in apparently molecule absent evolved objects Huertas Roldán
25B023 A The role of UV radiation in the sulphur budget of the ISM Gisela Esplugues
25B028 A Deep Mapping of Extended Precursor Prebiotic Chemistry in NGC1333 Samantha Scibelli
25B031 A Shocks in the dark: when quiescent clouds are not quiescent at all Giuliana Cosentino
25B032 A Unveiling the chemical origin of interstellar CO2 through HOCO+/HCOOH ratios German Molpeceres de Diego
25B033 A The Q-band CMZ Exploratory Survey with Yebes 40m Izaskun Jiménez
25B035 A Y-CHEMICO: Yebes study of the Chemical Evolution of MassIve star-forming COres Víctor M. Rivilla
25B039 B A deep, unbiased 7-10mm molecular line survey of the Fireworks Galaxy Maria Jesus Jimenez Donaire
25B041 A Salt in the ISM Miriam G. Santa-Maria
25B043 B Extended Green Objects in the Q Band: A Molecular Line Survey Ankan Das
25B044 A Tracing the organic complexity in buried nuclei: An extragalactic molecular inventory Ismael Garcia-Bernete
25B045 B From Droplets to Dense Cores - a Chemical and Kinematic Analysis of Future Star Formation in the Taurus Molecular Cloud Lucille Steffes
25B046 B 3mm spectroscopic mapping observation toward S255 to S257 region Shu Liu
25B047 B Imaging of a newly found ring-like sructure in the Central Molecular Zone Juan Li
25B048 A Exploration of the diffuse interstellar gas composition : a confirmation gerin
25B049 A Where and when are PAHs formed in evolved stars? Jose Cernicharo

Director Discretionary Time - 2025D

Proposal ID Rank Title PI
25D003 A QK-band observations of IRAS 18135-1456 Paula Muñoz Cutanda