| Clas. | CAT Ref. | IP | Awarded time | Instrument | Program |
|---|
| A | 80-GTC66/23A | Francisco Garzón López | G (10hrs) | EMIR | Is GNz11 hosting pop III stars in a protocluster core at z~11? |
| A | 39-GTC26/23A | Javier Román García | D (9.5hrs) | Osiris | Probing the purely "in-situ" nature of the UGC7321 superthin galaxy |
| A | 89-GTC72/23A | Cristina Ramos Almeida | D (24.7hrs) | MEGARA | Tracing young stellar populations in the central region of active galaxies: mid-infrared versus optical integral field spectroscopy |
| A | 9-GTC9/23A | Javier Licandro Goldaracena | G (17hrs) | Osiris | Visible spectra of the TNOs that will be visited by JWST large program |
| A | 63-GTC44/23A | Cristina Cabello González | D (12hrs) | MEGARA | Unveiling the escape of ionizing photons: 2D spatially-resolved study of local analogs |
| A | 3-GTC4-A/23A | Lluís Galbany | 1 A (14hrs) | EMIR | Rapid ToO Spectroscopy of Infant Supernovae with GTC in the optical and NIR |
| A | 3-GTC5-B/23A | Lluís Galbany | 1 A (10hrs) | Osiris | Rapid ToO Spectroscopy of Infant Supernovae with GTC in the optical and NIR |
| A | 53-GTC34-A/23A | Josefa Becerra González | 1 D (20hrs) | Osiris | Characterizing the electromagnetic counterparts of gravitational waves |
| A | 53-GTC35-B/23A | Josefa Becerra González | 1 A (10hrs) | EMIR | Characterizing the electromagnetic counterparts of gravitational waves |
| A | 71-GTC56/23A | Alberto Rebassa Mansergas | A (1.2hrs) | Osiris | An independent white dwarf mass determination of Gaia 1256+2117, an eclipsing binary composed of a cool white dwarf and a low-mass main sequence companion |
| A | 4-GTC6-A/23A | David Jones | 12 G (1.8hrs) | Osiris | Multi-wavelength target of opportunity follow-up of newly-discovered luminous red novae |
| A | 4-GTC7-B/23A | David Jones | 12 A (1hrs) | EMIR | Multi-wavelength target of opportunity follow-up of newly-discovered luminous red novae |
| A | 23-GTC17-A/23A | Alberto Javier Castro Tirado | 10 A (0.4hrs) | Osiris | GTC follow-up of gravitational radiation sources in the Multi-messenger Era |
| A | 23-GTC18-B/23A | Alberto Javier Castro Tirado | 14 A (1hrs) | Osiris | GTC follow-up of gravitational radiation sources in the Multi-messenger Era |
| A | 23-GTC19-D/23A | Alberto Javier Castro Tirado | 6 A (1hrs) | EMIR | GTC follow-up of gravitational radiation sources in the Multi-messenger Era |
| A | 79-GTC65/23A | Hugo Martín Tabernero Guzmán | A (6hrs) | Osiris | Exploring the presence of lithium in the atmosphere of WASP-76b with OSIRIS@GTC |
| A | 28-GTC21/23A | Marta Lorenzo Gonzalez | D (6hrs) | Osiris | Sextans-B: A new environment to study the mass-loss of very metal-poor massive stars |
| B | 58-GTC39/23A | Sara Cazzoli | G (10hrs) | MEGARA | What is the intrinsic shape of blue compact dwarf galaxies? |
| B | 2-GTC2-A/23A | Nancy Elias Rosa | G (10hrs) | Osiris | Peeking into the Very Center of Stellar Explosions with GTC Nebular Observations |
| B | 2-GTC3-B/23A | Nancy Elias Rosa | G (13hrs) | Osiris | Peeking into the Very Center of Stellar Explosions with GTC Nebular Observations |
| B | 25-GTC20/23A | Teodoro Muñoz Darias | 10 A (1hrs) | Osiris | X-ray Binary Transients: accretion disc winds and nebulae. |
| B | 57-GTC38/23A | Jun-Yan Jerry Zhang | A (4.8hrs) | EMIR | Confirming common proper motion metal-poor brown dwarf companions with EMIR |
| B | 59-GTC40-A/23A | Julia de Leon Cruz | G (1.25hrs) | Osiris | Unveiling the surface properties of outstanding retrograde TNO 468861 (2013 LU28) |
| B | 59-GTC41-B/23A | Julia de Leon Cruz | G (3.8hrs) | EMIR | Unveiling the surface properties of outstanding retrograde TNO 468861 (2013 LU28) |
| B | 91-GTC74-B/23A | Francisco Prada | 1 A (7.5hrs) | Osiris | Spectro-photometric light curves for kilonovae from GW-LVK O4 run: Equation of state and Hubble constant determination |
| B | 91-GTC75-C/23A | Francisco Prada | 1 A (10.5hrs) | Osiris | Spectro-photometric light curves for kilonovae from GW-LVK O4 run: Equation of state and Hubble constant determination |
| B | 91-GTC76-D/23A | Francisco Prada | 1 A (4.5hrs) | Osiris | Spectro-photometric light curves for kilonovae from GW-LVK O4 run: Equation of state and Hubble constant determination |
| B | 64-GTC45/23A | Chiara D'Eugenio | A (20hrs) | EMIR | Deep near-infrared imaging of a statistical sample of groups and clusters at 2 |
| B | 68-GTC55/23A | Montserrat Armas Padilla | D (4.5hrs) | Osiris | Uncovering the nature of the transient outflow in the compact X-ray binary UW CrB |
| B | 51-GTC32-A/23A | José Feliciano Agüí Fernández | 5 A (1.8hrs) | EMIR | GRBs, their progenitors and their environments |
| B | 51-GTC33-B/23A | José Feliciano Agüí Fernández | 8 A (1.3hrs) | Osiris | GRBs, their progenitors and their environments |
| B | 32-GTC23/23A | Manuel Ángel Pérez Torres | G (6hrs) | MEGARA | Proof for merging massive black holes through discovery of a recoiled compact stellar cluster |
| B | 101-GTC93/23A | Enrica Bellocchi Cimarra | D (17hrs) | MEGARA | "Tracing the ionized gas phase of low-power jet-ISM interaction with MEGARA/GTC" |
| B | 82-GTC68/23A | David Garcia Alvarez | G (31.5hrs) | Osiris | Investigating the role of episodic mass loss in the evolution of massive stars |
| B | 92-GTC77-A/23A | José Feliciano Agüí Fernández | 1 A (8hrs) | EMIR | GTC follow-up of binary-merger induced Kilonovae in the electromagnetic domain |
| B | 92-GTC78-B/23A | José Feliciano Agüí Fernández | 1 D (2hrs) | MEGARA | GTC follow-up of binary-merger induced Kilonovae in the electromagnetic domain |
| B | 92-GTC79-C/23A | José Feliciano Agüí Fernández | 1 A (8hrs) | Osiris | GTC follow-up of binary-merger induced Kilonovae in the electromagnetic domain |
| B | 92-GTC80-D/23A | José Feliciano Agüí Fernández | 6 A (1hrs) | Osiris | GTC follow-up of binary-merger induced Kilonovae in the electromagnetic domain |
| B | 19-GTC15/23A | Pilar Ruiz Lapuente | G (20hrs) | Osiris | Improved dark energy determination with SNe Ia at z > 1 within the Subaru program using the Hyper Suprime Camera and the GTC |
| B | 37-GTC24/23A | Yuheng Zhang | D (7hrs) | Osiris | The HI Tomography of a z=2.24 protocluster: understanding the enhancement of SMGs in the outskirts |
| B | 60-GTC42/23A | Martin Guerrero Roncel | A (4hrs) | MEGARA | MEGARA Investigation of Low-Ionization Structures in Planetary Nebulae |
| B | 74-GTC59-A/23A | Youdong Hu | 5 A (0.8hrs) | Osiris | Unveiling the physical origins and emission mechanisms of short GRBs |
| B | 74-GTC60-B/23A | Youdong Hu | 2 A (1hrs) | Osiris | Unveiling the physical origins and emission mechanisms of short GRBs |
| B | 74-GTC61-C/23A | Youdong Hu | 7 A (1hrs) | EMIR | Unveiling the physical origins and emission mechanisms of short GRBs |
| B | 74-GTC62-D/23A | Youdong Hu | 2 A (1hrs) | Osiris | Unveiling the physical origins and emission mechanisms of short GRBs |
| B | 83-GTC69/23A | David Garcia Alvarez | 6 A (2.5hrs) | EMIR | Spectroscopic follow-up of new eruptive young star candidates found with Gaia |
| B | 90-GTC73/23A | Julen Untzaga San Vicente | D (9hrs) | Osiris | Confirming intermediate-mass black hole candidates in the Milky Way halo |
| B | 55-GTC36-A/23A | Nicolas Lodieu | D (2.5hrs) | Osiris | Variability and activity in the planetary mass regime at 5-10 Myr |
| B | 55-GTC37-B/23A | Nicolas Lodieu | A (3.2hrs) | EMIR | Variability and activity in the planetary mass regime at 5-10 Myr |
| B | 21-GTC16/23A | Luca Costantin | D (28.5hrs) | MEGARA | First spectroscopic observation of a compact red-nugget relic in a disk galaxy |
| B | 105-GTC97/23A | José Feliciano Agüí Fernández | G (28hrs) | MEGARA | 3D kinematics and abundances in SLSN hosts with MEGARA |
| B | 65-GTC46/23A | Martin Guerrero Roncel | A (4.2hrs) | MEGARA | Mapping the Precessing Jet in the Iconic Cat's Eye Nebula |
| B | 43-GTC28-A/23A | David Jones | A (10hrs) | Osiris | Masses of post-common-envelope central stars of planetary nebulae recently revealed by Gaia |
| B | 43-GTC29-B/23A | David Jones | G (18.4hrs) | Osiris | Masses of post-common-envelope central stars of planetary nebulae recently revealed by Gaia |
| B | 18-GTC14-B/23A | Rafael Barrena | D (9hrs) | Osiris | The mass scaling relations at the endpoint of structure formation |
| B | 38-GTC25/23A | José Feliciano Agüí Fernández | G (7.85hrs) | MEGARA | The host-galaxy environments of short GRBs with MEGARA |
| B | 76-GTC64/23A | Maria Luisa Garcia Vargas | D (6.3hrs) | MEGARA | A deep spectroscopic blue mapping of Leoncino galaxy with MEGARA IFU |
| B | 87-GTC70-A/23A | Maria Luisa Garcia Vargas | D (9.9hrs) | MEGARA | Mapping the ionized gas in the eXtremely Metal-Deficient galaxy SDSSJ0811+4730 |
| B | 87-GTC71-B/23A | Maria Luisa Garcia Vargas | D (3.6hrs) | MEGARA | Mapping the ionized gas in the eXtremely Metal-Deficient galaxy SDSSJ0811+4730 |
| B | 66-GTC47/23A | Jun-Yan Jerry Zhang | A (13.4hrs) | EMIR | Improving the near-infrared spectrum of the closest and unique metal-poor brown dwarf at 9 pc |
| B | 67-GTC48-A/23A | Rubén Sánchez Ramírez | 3 A (2hrs) | Osiris | Investigating the physical origins and radiation mechanisms of peculiar long GRBs |
| B | 67-GTC49-B/23A | Rubén Sánchez Ramírez | 4 A (2hrs) | Osiris | Investigating the physical origins and radiation mechanisms of peculiar long GRBs |
| B | 67-GTC50-C/23A | Rubén Sánchez Ramírez | 8 A (0.75hrs) | Osiris | Investigating the physical origins and radiation mechanisms of peculiar long GRBs |
| B | 67-GTC51-D/23A | Rubén Sánchez Ramírez | 4 A (1.5hrs) | EMIR | Investigating the physical origins and radiation mechanisms of peculiar long GRBs |
| B | 67-GTC52-E/23A | Rubén Sánchez Ramírez | 2 A (1.5hrs) | Osiris | Investigating the physical origins and radiation mechanisms of peculiar long GRBs |
| B | 67-GTC53-F/23A | Rubén Sánchez Ramírez | 2 A (1hrs) | EMIR | Investigating the physical origins and radiation mechanisms of peculiar long GRBs |
| B | 67-GTC54-G/23A | Rubén Sánchez Ramírez | 8 A (0.5hrs) | EMIR | Investigating the physical origins and radiation mechanisms of peculiar long GRBs |
| B | 72-GTC57/23A | Ismael Pérez Fournon | D (6hrs) | Osiris | A dusty ultra-diffuse galaxy in the Coma cluster |
| B | 104-GTC95-B/23A | Ismael Pérez Fournon | 10 A (1hrs) | Osiris | Discovery and follow-up of gravitationally lensed supernovae |
| B | 104-GTC96-C/23A | Ismael Pérez Fournon | D (12hrs) | Osiris | Discovery and follow-up of gravitationally lensed supernovae |
| B | 62-GTC43/23A | Ismael Pérez Fournon | D (11.25hrs) | Osiris | Herschel-LOFAR hyperluminous infrared galaxies (HLIRGs) - the greatest challenge in ultra-massive galaxy formation? |
| C | 7-GTC8/23A | María Caballero García | D (8.2hrs) | Osiris | Identifying the nature of UV transients discovered with Swift UVOT during GW follow-up |
| C | 40-GTC27/23A | Alberto Rebassa Mansergas | A (54.2hrs) | Osiris | Full chraracterization of 13 newly identified ultra-massive white dwarfs |
| C | 11-GTC11/23A | Riccardo Scarpa | G (20hrs) | EMIR | EMIR imaging of gamma-ray blazars |
| C | 97-GTC92/23A | José Feliciano Agüí Fernández | G (24hrs) | Osiris | Pre-explosion spectroscopy of potential SN progenitors in nearby galaxies |
| C | 93-GTC90-J/23A | Raúl de la Fuente Marcos | D (1.5hrs) | Osiris | Unveiling the inert Oort cloud: Follow-up observations of ACT candidates with GTC/OSIRIS |
| C | 106-GTC98-A/23A | Stefan Geier | A (10hrs) | EMIR | A new type of quasar? |
| C | 106-GTC99-B/23A | Stefan Geier | D (12hrs) | Osiris | A new type of quasar? |
| Filler | 29-GTC22/23A | Miriam García García | G (30hrs) | Osiris | Spectroscopic follow-up of the first massive binary detected in Sextans-A. |
| Filler | 103-GTC94/23A | Ignacio Negueruela Díez | A (35hrs) | Osiris | The distant and obscured Milky Way |
| Filler | 1-GTC1/23A | Jesús Maíz Apellániz | A (60hrs) | Osiris | Spectroscopic follow-up of the cross-match of the OB stars in the ALS catalog with Gaia |
| Filler | 10-GTC10/23A | Riccardo Scarpa | G (12hrs) | Osiris | Looking for neutrino sources with optical telescopes |
| Filler | 81-GTC67/23A | Jose Luis Ortiz Moreno | A (10hrs) | Osiris | Photometry and astrometry of relevant TransNeptunian Objects |
| Filler | 46-GTC31/23A | Julia de Leon Cruz | A (20hrs) | Osiris | Visible spectra of newly discovered near-Earth asteroids and NEAs accesible to spacecraft |
| Filler | 73-GTC58/23A | David Morate González | A (30hrs) | Osiris | Characterization of differentiated asteroid families beyond the Inner Main Belt |
| Filler | 44-GTC30/23A | Eri Tatsumi | A (20hrs) | Osiris | Search for F-type asteroids: Context of Hayabusa2 and OSIRIS-REx sample return missions |
| Filler | 75-GTC63/23A | Maria Luisa Garcia Vargas | A (75hrs) | MEGARA | MEGASTAR. MEGARA-GTC Stellar Library |
| Filler | 12-GTC12/23A | Riccardo Scarpa | G (32hrs) | Osiris | Hunting for high redshift BL Lacertae objects |