cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57780/esa-kcwt1i2
title: 2331391

description:   Target RA (J2000):  165.365326  and deg    Target Dec (J2000):  5.13948  and deg    Gaia GMag:  11.811    Programme ID:  CH_PR240008   PI of observing programme:  Nabbie   Title of programme:  Confirming the Transit Timing Variations of a Neptune-Sized Inner Companion to a Hot Jupiter   Abstract:  The presence of inner companions to Hot Jupiters reveals a rarely-treaded path of Hot Jupiter formation one lacking its customary violence. Though intrinsically rare such systems provide valuable opportunities to directly constrain migrational pathways and understand the multi-faceted origins of Hot Jupiters. TOI-5143 presents one such opportunity hosting a confirmed Hot Jupiter TOI-5143.01 and a statistically-validated inner Neptune TOI-5143.02. TOI-5143.01 is one of the shortest-period Hot Jupiters to host an interior companion second only to WASP-47. Preliminary ground-based photometric observations suggest that TOI-5143.02 exhibits tentative transit timing variations (TTVs). This program will use CHEOPS to confirm the TTV signals of TOI-5143.02. The TTV observations will be used with existing radial velocity data of the system to precisely constrain the mass and dynamical history of the system.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-kegnsqx
title: 2332297

description:   Target RA (J2000):  154.908371  and deg    Target Dec (J2000):  -9.80628  and deg    Gaia GMag:  11.907    Programme ID:  CH_PR140063   Programme Manager:  BARROS   PI of observing programme:  Benz   Title of programme:  Axis 3 - Measuring tides that shape planetary systems (TIDES)   Abstract:  Ultra-short orbital period planets suffer from intense tidal forces which lead to a deformation of the planet's shape (Correia 2014  Barros et al. 2022) and shrinkage of the planet's orbit. Measuring the tidal deformation of the planet allows us to estimate the second-degree fluid Love number and gain insight into the planet's internal structure. Moreover measuring the tidal decay timescale allows us to estimate the stellar tidal quality factor which is key to constraining stellar physics. Therefore studying tidal effects in ultra-short orbital period planets gives us a wealth of information on planet-to-star tidal interactions that shape planetary systems. We also propose to estimate the tidal decay of a few hot-Jupiters for which we expect a measurable orbital period decrease within the next 3 years. The longer baseline allowed by the CHEOPS extension will be crucial for our ability to measure the tidal decay of some systems. During the CHEOPS nominal mission we achieved a breakthrough on the direct detection of the tidal deformation of exoplanets. Building on these results we also propose to better constrain the tidal deformation of WASP-103b and WASP-12b directly from the transit deformation signature (similar to  Barros et al. 2022) and also from the signature in the phase curve (similar to Akinsanmi et al. in prep.).    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-kfxuupg
title: 2044703

description:   Target RA (J2000):  197.317459  and deg    Target Dec (J2000):  -60.30836  and deg    Gaia GMag:  8.09    Programme ID:  CH_PR100017   Programme Manager:  PAGANO   PI of observing programme:  Benz   Title of programme:  ANCILLARY SCIENCE - Recovering ephemeris   Abstract:  There are a number (about 2 tens) of transiting planetst of interest for follow-up characterizing measurements (JWST E-ELT) whose ephemeris must be recovered before going with large facilities and this can be done by CHEOPS.  It is proposed to monitor one transit per target  the observing window centered on the transit time predicted by the best available ephemeris and lasting two times the uncertainty on T0 plus the transit duration. Target list and target priority shall be modified according to results from K2 and TESS campaigns.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-khz9trc
title: 2298922

description:   Target RA (J2000):  95.486618  and deg    Target Dec (J2000):  -11.54153  and deg    Gaia GMag:  11.18    Programme ID:  CH_PR149000   Programme Manager:  OSBORN   PI of observing programme:  Benz   Title of programme:  SoM - CHeops And TEss vAlidate Unconfirmed eXoplanets   Abstract:  The vast majority of TESS Objects of Interest remain unconfirmed in part due to a lack of follow-up observations. There are so many such targets that even with strict filters to ensure targets are small planets several unconfirmed TESS candidates are transiting at any one time. CHATEAUX proposes to use time-critical P3 Cheops observations of a filtered  and  ranked set of TOIs which would be able to be scheduled between higher-priority time-critical Cheops observations. We expect these filler observations will produce useful scientific observations of TOI candidates including ephemeris improvements TTV detection improved radius precision and improved false positive probabilities (thanks to both ruling our chromaticity and centroid shifts).    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-kinqvuk
title: 2046388

description:   Target RA (J2000):  197.317459  and deg    Target Dec (J2000):  -60.30836  and deg    Gaia GMag:  8.09    Programme ID:  CH_PR100017   Programme Manager:  PAGANO   PI of observing programme:  Benz   Title of programme:  ANCILLARY SCIENCE - Recovering ephemeris   Abstract:  There are a number (about 2 tens) of transiting planetst of interest for follow-up characterizing measurements (JWST E-ELT) whose ephemeris must be recovered before going with large facilities and this can be done by CHEOPS.  It is proposed to monitor one transit per target  the observing window centered on the transit time predicted by the best available ephemeris and lasting two times the uncertainty on T0 plus the transit duration. Target list and target priority shall be modified according to results from K2 and TESS campaigns.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-kow7e13
title: 2274840

description:   Target RA (J2000):  46.060631  and deg    Target Dec (J2000):  43.55794  and deg    Gaia GMag:  9.71    Programme ID:  CH_PR140079   Programme Manager:  OSBORN   PI of observing programme:  Benz   Title of programme:  Axis 1 - DETECTIVE CHEOPS: Confirming small transiting planets on long orbital periods   Abstract:  Transiting planets orbiting bright stars are key for the characterisation of exoplanet atmospheres and internal structures. However the vast majority of such planets have short (P<20d) orbital periods. This is because long-period transiting planets do not produce consecutive transits in photometric survey data. However these planets are some of the most interesting as unlike their interior companions they are less affected by the gravitational and electromagnetic effects of their host stars. This programme will use CHEOPS to efficiently detect characterisable small transiting planets on long orbital periods. We will do this by leveraging as much external information as possible to constrain orbital periods - from nonconsecutive transits (i.e. mono- duo- or trio-transit candidates) in photometric survey data such as K2 or TESS and from radial velocities where available. Such techniques have been successful in the CHEOPS nominal mission with for example the photometrically-constrained TOI-2076 c  and  d (Osborn et al 2022) or the monotransit+RV case of TOI-561 d  and  e (Lacedelli et al 2021  and  2022). These planets once found by CHEOPS may also form interesting science targets for other parts of the GTO extended mission science case such as studying the architectural diversity of exoplanetary systems and even searches for exomoon  and  rings.    [truncated! Please see actual data for full text]
DOI: 10.15468/dl.hz99wn
title: Occurrence Download

description: A dataset containing 27 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Rumex ×ujskensis Rech.fil."
 ]
}

 The dataset includes 27 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0097764-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.57780/esa-kpqrm3l
title: 2044929

description:   Target RA (J2000):  154.901169  and deg    Target Dec (J2000):  19.87000  and deg    Gaia GMag:  8.21    Programme ID:  CH_PR100018   Programme Manager:  PAGANO   PI of observing programme:  Benz   Title of programme:  ANCILLARY SCIENCE - Low level variability on short time scales of Mdwarfs   Abstract:  This is a filler program aimimg to characterize the stellar noise (mainly microflares  dips and short lasting oscillations) at short time scales  for Mdwarfs of different level of variability and other active late type stars hosting exoplanets. Being interested to micro-variability on time scales from few seconds to a hours even one CHEOPS orbit can get useful data. The measured parameters - mean variance pooled variaance flares/microflares occurence rate dips occurence rate power spectrum -  will be related  to stellar properties (Teff H-alpha Ca II H and K X-ray and UV fluxes).  Selected targets spans subclasess of late type stars with different level of activity. They have been selected among those  with already know stellar properties (typicall surveyed for exoplanet detection)  and include all  dM / late K and TTau  with  planets.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-kq8hwdh
title: 2072028

description:   Target RA (J2000):  206.533234  and deg    Target Dec (J2000):  -10.44680  and deg    Gaia GMag:  13.694    Programme ID:  CH_PR100002   Programme Manager:  VANGROOTEL   PI of observing programme:  Benz   Title of programme:  ANCILLARY SCIENCE - Planet remnants around evolved stars with CHEOPS   Abstract:  This filler programme is to search for planet remnants transiting subdwarf B (sdB) stars which are evolved stars after the first red giant branch.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-kqs7jc3
title: 2071984

description:   Target RA (J2000):  196.596161  and deg    Target Dec (J2000):  -11.69257  and deg    Gaia GMag:  13.633    Programme ID:  CH_PR100002   Programme Manager:  VANGROOTEL   PI of observing programme:  Benz   Title of programme:  ANCILLARY SCIENCE - Planet remnants around evolved stars with CHEOPS   Abstract:  This filler programme is to search for planet remnants transiting subdwarf B (sdB) stars which are evolved stars after the first red giant branch.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-ksrs8ue
title: 2306574

description:   Target RA (J2000):  68.593750  and deg    Target Dec (J2000):  43.03742  and deg    Gaia GMag:  12.3    Programme ID:  CH_PR140068   Programme Manager:  EGGER   PI of observing programme:  Benz   Title of programme:  Axis 1 - Constraining the abundance of water in hot planets (HotWatermelon)   Abstract:  Planets located close enough to their star experience evaporation which leads to a dichotomy in the possible gas content of these objects. These planets either contain more than around one percent of gas (in mass) or no gas at all (see Owen and Wu 2017). This dichotomy when expressed in term of mass-radius relation implies the existence of a region in the mass-radius diagram of hot planets where dry planets cannot exist. We propose to observe planets that could lie in this region with CHEOPS. Combining a precise radius and mass will allow us to identify planets in this forbidden region hence showing that they have to contain volatiles most likely water. Our data combined with future JWST observations will also constrain the efficiency of evaporation.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-ktmdlx5
title: 2070407

description:   Target RA (J2000):  217.609116  and deg    Target Dec (J2000):  -46.15920  and deg    Gaia GMag:  11.75    Programme ID:  CH_PR140066   Programme Manager:  NASCIMBENI   PI of observing programme:  Benz   Title of programme:  Axis 1 - Uncovering a maverick population: CHEOPS observations of hot Jupiter systems with inner small companions (MAVERICK)   Abstract:  Planetary systems hosting a hot or warm Jupiter (HJ/WJ) plus nearby small companion(s) such as WASP-47 (Nascimbeni et al. 2023) are extremely rare and very valuable to constrain formation and migration models. Only five such systems are known so far. Our goal is to increase the sample size by confirming and characterizing five TESS candidates with such an architecture and improving their orbital/physical parameters including ephemeris radii and (when feasible) planetary masses through TTVs. As demonstrated by our work on WASP-47 RVs and TTVs are very synergistic at decoding these complex systems. A dedicated RV follow-up will be coordinated.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-kwul817
title: 2298816

description:   Target RA (J2000):  42.984364  and deg    Target Dec (J2000):  -30.81453  and deg    Gaia GMag:  6.25    Programme ID:  CH_PR140067   Programme Manager:  ALIBERT   PI of observing programme:  Benz   Title of programme:  Axis 1 - Probing the architecture-composition-metallicity link (ArchiCHESS)   Abstract:  Planet formation models predict the existence of a link between the orbital architecture of a planetary system the composition of its planets and the metallicity of the central star. This correlation results from the following two processes: On one hand the temporal evolution of the gas content of the protoplanetary disk causes migration of the planets and therefore determines the orbital architecture of the system. On the other hand the composition of the planets depends on the structure and composition of the disk of solids itself related to the gas content of the disk and the solid-to-gas ratio in the disk. This latter quantity is finally correlated with the stellar metallicity. The goal of ArchiCHESS is to observe multi-planetary systems to constrain their architecture (using architecture coefficients of Mishra et al. 2023) and relate this to the water fractions of the planets as well as to the metallicity of the central star.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-kxs83mg
title: 2332296

description:   Target RA (J2000):  176.380569  and deg    Target Dec (J2000):  65.54099  and deg    Gaia GMag:  8.565    Programme ID:  CH_PR140073   Programme Manager:  LAM   PI of observing programme:  Benz   Title of programme:  Axis 1 - Gas Contents of Low Mass Planets (GCLMP)   Abstract:  The priority questions for planetary sciences are aimed at understanding the origin of planetary systems and life. Planet formation is a complex process that starts with the condensation of matter in a disc of molecular gas and dust. Planetesimals grow into planets accrete material lose volatiles chemically evolve and outgas contract as they cool down and finally are destroyed or survive when the star dies ejecting back material into the interstellar medium and possibly starting again a new cycle. Most of the evidence that we have on these processes comes from the study of our Solar System and astrophysical observations of neighboring stars. The detection and characterization of extrasolar planets revealed a diversity of planetary systems beyond the Solar System but these discoveries challenged existing planet formation theories. Precisely characterized bulk properties of exoplanets help place constraints on the varying formation conditions and evolution processes in order to understand the origin of exoplanets. In this program we propose the characterization of long-period (P > 15 days) low-mass gas-rich planets (defined as planets with radii between 2 and 4 Earth radii) by refining their planetary radii.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-l0ox2xq
title: 2309130

description:   Target RA (J2000):  90.159462  and deg    Target Dec (J2000):  0.13178  and deg    Gaia GMag:  11.23    Programme ID:  CH_PR140084   Programme Manager:  ULMER-MOLL   PI of observing programme:  Benz   Title of programme:  Axis 1 - CompoSubNeptu   Abstract:  Sub-Neptunes are the most common type of known planets in the galactic neighborhood. In spite of that their interior composition and therefore their origin has to date not been constrained observationally. The reason is the degeneracy in possible compositions that can explain their observed properties. Two end member compositions are theoretically suggested: dry rocky cores + about 1% of H/He or ocean planets containing about 50% water in mass. The former is suggested by evolutionary evaporation models the later by formation models. These compositions correspond to fundamentally different in situ formation versus orbital migration pathways. If observationally it should turn out that close-in sub-Neptunian planets are indeed water worlds this could be seen as one of the largest successes of planet formation theory. The opposite case would mean that one or several elements of our current understanding of the origin of planets is fundamentally flawed. It is therefore of paramount importance to answer the fundamental question “What are sub-Neptunes made of?”. With this program we propose a three-faceted approach to answer this question: 1) is there a grouping in density? 2) Preparing for the JWST opportunity. 3) Is the ice mass fraction correlated with the stellar composition? We propose to use CHEOPS for the precise radius determination of a carefully chosen sample of TESS planet candidate whose radii make them susceptible to be either ocean worlds or rocky cores with H/He envelopes.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-l0w2uwf
title: 2217040

description:   Target RA (J2000):  50.131763  and deg    Target Dec (J2000):  42.60708  and deg    Gaia GMag:  10.819    Programme ID:  CH_PR440018   PI of observing programme:  Dattilo   Title of programme:  Confirmation of four planet candidates around an extremely young star   Abstract:  We request 64 orbits of CHEOPS observations to confirm and characterize the planetary system orbiting the star TOI-6109 a young approximately 80Myr-old Sun-like star in the Alpha Persei cluster. It hosts at least 4 transiting planet candidates all about the size of Neptune orbiting within 16 day orbital periods. The planets orbit near mean motion resonances so transit timing variations should reveal their masses. The system's youth and near-resonant configuration present a unique opportunity to test theoretical models of atmospheric mass loss.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-l241kl8
title: 2298637

description:   Target RA (J2000):  61.331631  and deg    Target Dec (J2000):  20.15710  and deg    Gaia GMag:  10.08    Programme ID:  CH_PR240005   PI of observing programme:  Damasso   Title of programme:  Escape from the “V1298 Tau e labyrinth”: following the CHEOPS’ thread to confirm the orbital period and large TTVs/TDVs of an infant planet   Abstract:  The object of the proposal is the star V1298 Tau which hosts a system of four transiting planets. The focus of the science case is the confirmation of the orbital period of planet V1298 Tau e and the determination of its transit timing variations (TTVs) and transit duration variations (TDVs) also using archival photometric data collected by Kepler/K2 in 2015 and by TESS in 2021. Previous observations with CHEOPS allowed to identify P=45.00 days as the actual orbital period of planet e (private communication). This results must be necessarily confirmed with further follow-up aimed at detecting additional transits. The same CHEOPS observations revealed a significant TTV and TDV. Observing new transits with CHEOPS is the only way to measure the average orbital period and the TTVs/TDVs and to inform dynamical simulations in order to characterise the evolution of the planets’ orbits over very short timescale (of the order of a few years). The outstanding results expected from the follow-up with CHEOPS will be of great benefit for a proper modelling of hundreds of radial velocities of V1298 Tau collected so far whose analysis has proved very challenging so far.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-l2raihz
title: 2298796

description:   Target RA (J2000):  68.593750  and deg    Target Dec (J2000):  43.03742  and deg    Gaia GMag:  12.3    Programme ID:  CH_PR140068   Programme Manager:  EGGER   PI of observing programme:  Benz   Title of programme:  Axis 1 - Constraining the abundance of water in hot planets (HotWatermelon)   Abstract:  Planets located close enough to their star experience evaporation which leads to a dichotomy in the possible gas content of these objects. These planets either contain more than around one percent of gas (in mass) or no gas at all (see Owen and Wu 2017). This dichotomy when expressed in term of mass-radius relation implies the existence of a region in the mass-radius diagram of hot planets where dry planets cannot exist. We propose to observe planets that could lie in this region with CHEOPS. Combining a precise radius and mass will allow us to identify planets in this forbidden region hence showing that they have to contain volatiles most likely water. Our data combined with future JWST observations will also constrain the efficiency of evaporation.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-l5c2i5e
title: 2335344

description:   Target RA (J2000):  141.107849  and deg    Target Dec (J2000):  5.76606  and deg    Gaia GMag:  10.164    Programme ID:  CH_PR140083   Programme Manager:  SERRANO   PI of observing programme:  Benz   Title of programme:  Axis 1 - ChOIs-reloaded   Abstract:  While the TESS mission is monitoring the sky for planetary transits its photometric precision is lower than that of CHEOPS. This means that signals detected at low signal-to-noise by TESS can be confirmed with CHEOPS. We will observe such low SNR candidates from TESS with a three-fold objective:   1) we will follow-up tentative signals in multi-planet systems as these are less likely to be false positives than systems with a single planet   2) we will prioritize the confirmation of candidates that can be confirmed by ongoing and future radial-velocity campaigns   3) we will collect sufficient transits to measure radii with a precision of at least 6%. Such precision coupled with a 10% precision on the planetary mass is necessary for a detailed analysis of both the internal structure of the exoplanet and the formation/evolution process of the system.    [truncated! Please see actual data for full text]