cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57780/esa-ekcjqj6
title: 2400292

description:   Target RA (J2000):  186.817169  and deg    Target Dec (J2000):  -29.83283  and deg    Gaia GMag:  11.34    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: 10.57780/esa-en7j0hz
title: 2436071

description:   Target RA (J2000):  186.817169  and deg    Target Dec (J2000):  -29.83283  and deg    Gaia GMag:  11.342    Programme ID:  CH_PR140085   Programme Manager:  VENTURINI   PI of observing programme:  Benz   Title of programme:  Not known   Abstract:  Not known    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-epraw6p
title: 2552434

description:   Target RA (J2000):  63.928280  and deg    Target Dec (J2000):  29.16662  and deg    Gaia GMag:  13.98    Programme ID:  CH_PR250020   PI of observing programme:  Vach   Title of programme:  Not known   Abstract:  Not known    [truncated! Please see actual data for full text]
DOI: 10.5281/zenodo.10943718
title: Crocus-ERA5 daily snow product over the Northern Hemisphere at 0.25° resolution

description: The Crocus-ERA5 daily snow product is derived from the complex snow scheme Crocus coupled to the ISBA (Interactions between Soil–Biosphere–Atmosphere) land surface model (Brun et al., 2013) and embedded into the SURFEX numerical platform (https://www.umr-cnrm.fr/surfex/). The model is driven by a meteorological forcing (temperature, precipitation, humidity, winds, etc) derived from the ERA5 global atmospheric reanalysis (https://www.ecmwf.int/en/forecasts/dataset/ecmwf-reanalysis-v5). This product only concerns open field snowpack, i.e. only low vegetation is modeled (no forest). It covers the entire Northern Hemisphere at 0.25° resolution over the 1950-07-01 to 2023-06-30 period. All snow characteristics (see later) are available at a dailly frequency. This product is the successor of the Crocus-ERA-Interim daily snow product (Decharme, 2024). It is used by the NOAA Artic Report Card from 2021 to present for the annual survey of the Terrestrial Snow Cover anomalies over the Northern Hemisphere. An evaluation of the snow water equivalent product can be found in Mudryk et al. (2024) where it is compared to observations and to about twenty alternative datasets.
description: snd = snow depth (m)

snw = snow water equivalent (kg/m²)

lwsnl = liquid water content in the snowpack (kg/m²)

albsn = snow albedo (-)

tsns = snow surface temperature (K)

tsn = snowpack internal temperature (K)

snc = snow cover fraction (-)
DOI: 10.57780/esa-erq7nkl
title: 2576015

description:   Target RA (J2000):  53.232685  and deg    Target Dec (J2000):  -9.45826  and deg    Gaia GMag:  3.47    Programme ID:  CH_PR250017   PI of observing programme:  Roettenbacher   Title of programme:  Not known   Abstract:  Not known    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-esau6se
title: 2446774

description:   Target RA (J2000):  207.526169  and deg    Target Dec (J2000):  -40.83580  and deg    Gaia GMag:  9.61    Programme ID:  CH_PR240004   PI of observing programme:  Ilin   Title of programme:  HIP 67522 b – a Hot Jupiter that triggers flares on its host   Abstract:  The habitability of exoplanets depends crucially on the space weather they experience. A planet orbiting _inwards_ of the habitable zone is a natural probe of the magnetized winds and energetic radiation traveling towards a potentially habitable planet. When a planet orbits close enough to its host it can perturb the star’s magnetic field setting off energetic flares in the stellar corona. In the optical these flares appear as recurrent brightenings in phase with the orbit. If we measure such flares we immediately know that the planet moves inside the closed-field corona critical information for space weather modelers. To measure this planet-induced flaring we have to find flares occurring in excess of intrinsic stellar flaring. This is done by testing for deviations from a random distribution of flares with the orbital phase of the planet. HIP 67522 a 17 Myr Sun with a Hot Jupiter in a 7-day orbit detected in 2020 has the ideal properties to exhibit such excess flares. But there is more: In recent TESS data HIP 67522 flared a total of four times. Each time the flare took place within 10h after transit the same 4% of the planet’s orbit. This is very unlikely to happen if these flares occurred randomly. We propose to observe HIP 67522 using CHEOPS high sensitivity for flares for 16 visits for 8 orbits each during the critical 4% of HIP 67522 bs orbit to measure for the first time planet induced flares at high significance.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-f00l2ar
title: 2585822

description:   Target RA (J2000):  82.864151  and deg    Target Dec (J2000):  -3.67723  and deg    Gaia GMag:  7.11    Programme ID:  CH_PR250004   PI of observing programme:  Poyatos   Title of programme:  Not known   Abstract:  Not known    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-f3d0s7b
title: 2440604

description:   Target RA (J2000):  251.276459  and deg    Target Dec (J2000):  33.50923  and deg    Gaia GMag:  7.48    Programme ID:  CH_PR240019   PI of observing programme:  Stalport   Title of programme:  Understanding stellar activity patterns by coupling absolute photometry and intense RV monitoring   Abstract:  Nowadays stellar activity constitutes the main obstacle to the detection of planets with sub-meter per second radial velocity (RV) amplitudes. In the near future the PLATO mission will survey with high precision the photometric variations of bright stars inxa0specific areas of the sky. The combination of those observations with the most precise spectrographs will certainly be of upmost interest to alleviate stellar activity effects and provide mass measurements below the meter per second level needed to reach PLATO’s science goals. CHEOPS represents a unique opportunity to take a step ahead in prevision of PLATO and valuably support extensive RV surveys. We propose a long-term absolute photometry campaign in parallel to an already secured intense RV monitoring on HD151288 a moderately active star with yet-unclear activity patterns. In the fashion of a filler program with very limited constraints those observations could shed light on the complex RV stellar activity signals and they would serve as a benchmark for CHEOPS long-term stability and ability to conduct precise absolute photometry.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-f3ptljb
title: 2394237

description:   Target RA (J2000):  239.825516  and deg    Target Dec (J2000):  -49.36666  and deg    Gaia GMag:  8.821    Programme ID:  CH_PR140087   Programme Manager:  BATTLEY   PI of observing programme:  Benz   Title of programme:  Not known   Abstract:  Not known    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-f5zow6c
title: 2485914

description:   Target RA (J2000):  275.226837  and deg    Target Dec (J2000):  16.45269  and deg    Gaia GMag:  10.92    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: 10.6084/m9.figshare.c.3823096_d2.v1
title: MOESM2 of Chloroquine efficacy for Plasmodium vivax in Myanmar in populations with high genetic diversity and moderate parasite gene flow

description: Additional file 2. Patient demographic details for the successfully genotyped samples from Shwegyin, Kawthoung and Myawaddy.
DOI: 10.57780/esa-f698az6
title: 2515734

description:   Target RA (J2000):  294.661407  and deg    Target Dec (J2000):  31.21920  and deg    Gaia GMag:  7.575    Programme ID:  CH_PR140061   Programme Manager:  LENDL   PI of observing programme:  Benz   Title of programme:  Axis 2 - A Deep search for hot JupIter VAriability (DIVA)   Abstract:  The temporal stability of hot Jupiter atmospheres remains an open question. While there are several tentative detections of changes in the observed planetary occultation depths phase curve shapes or transmission spectra no indisputable evidence exists to date. This program will perform a deep search for variability in the dayside brightness of several hot Jupiters. A detection of clear variability and the measurement of its timescale would open the door to a suite of follow-up studies involving the dynamical behaviour of exoplanet atmospheres.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-f6by937
title: 2371769

description:   Target RA (J2000):  181.632462  and deg    Target Dec (J2000):  -31.64567  and deg    Gaia GMag:  10.24    Programme ID:  CH_PR240022   PI of observing programme:  Jenkins   Title of programme:  Constraining the Prevalence of Metallic Clouds within the Neptune Desert   Abstract:  With the recent stunning discovery of a very high albedo for the extreme Neptune Desert planet LTT9779b a result that is likely due to the presence of high-altitude metallic clouds in the atmosphere scattering the incoming starlight we are finally beginning to understand the chemical structure and evolution of these desert worlds.  However given their rarity one may wonder whether such cloud structures are normal for these types of planets and if so what are the physical processes driving this.  In order to respond to this question we request observations using CHEOPS to observe two other planets that have recently been confirmed to reside in the Neptune Desert and who orbit stars bright enough to significantly detect their secondary eclipses in the optical.  We shall measure the eclipses of the planets TOI-1997b and TOI-2352b allowing us to place strong constraints on their albedos and therefore model their atmospheric structures.  This work will provide evidence for or against the presence of highly reflective silicate and titanium clouds in these planets and allow us to begin to build a global picture of the atmospheric constituents of some of the most extreme Neptune planets currently known.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-f6zushq
title: 2609916

description:   Target RA (J2000):  41.188507  and deg    Target Dec (J2000):  -32.21089  and deg    Gaia GMag:  11.212    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: 10.6084/m9.figshare.c.3823096_d2
title: MOESM2 of Chloroquine efficacy for Plasmodium vivax in Myanmar in populations with high genetic diversity and moderate parasite gene flow

description: Additional file 2. Patient demographic details for the successfully genotyped samples from Shwegyin, Kawthoung and Myawaddy.
DOI: 10.57780/esa-f7jfte2
title: 2368142

description:   Target RA (J2000):  189.839218  and deg    Target Dec (J2000):  20.02734  and deg    Gaia GMag:  8.172    Programme ID:  CH_PR140080   Programme Manager:  LELEU   PI of observing programme:  Benz   Title of programme:  Axis 1 - Architecture of Resonant Chains (ARC)   Abstract:  Resonant chains are gold mines for fueling our understanding of planetary systems. The minute details of their architectures encode the history of their formation: the order of the capture of the planets in the chain (Delisle 2017) the local shape of the proto-planetary disc and its dispersal (e.g.  Nesvorny et al 2022) and the long-term evolution of the system through tidal dissipation (e.g. Papaloizou et al 2018). The high multiplicity of these systems also makes them especially valuable to constrain our models of the formation of planetary systems (See Emsenhuber et al 2022 and other papers of the NGPPS series) since all the planets have to form in the same environment and the relative fragility of the configuration ensures that no violent evolution (e.g. close encounters/impacts) occurred after the dissipation of the proto-planetary disc (Leleu et al 2021). In addition the transit timing variations induced by the compactness of the systems allow for precise mass determination down to a few per cent in the case of Trappist-1 (Agol et al 2021). This allows an in-depth characterization of moderately insolated rocky planets and mini-Neptune with a precision which is rarely reachable through radial velocities enabling studies of their interiors and atmospheres. The brightness of the current targets of the program (Gaia band mag 11 for TOI178 12 for K2-138 8.4 for TOI1835) allows to combine RVs and photometric measurements. The two methods have a great synergy as TTVs allow for in-depth characterization o [truncated! Please see actual data for full text]
DOI: 10.60656/e3b69b4a6fe44f7b
title: Custom collection of ice water content data from Bucharest, Chilbolton, Galați, Hyytiälä, Jülich, and 6 other sites on 7 Feb 2023
DOI: 10.57780/esa-f7jumyh
title: 2455495

description:   Target RA (J2000):  313.691254  and deg    Target Dec (J2000):  -72.80463  and deg    Gaia GMag:  11.806    Programme ID:  CH_PR240009   PI of observing programme:  Garai   Title of programme:  Refining parameters of grazing transiting exoplanets with CHEOPS and TESS   Abstract:  Grazing transiting exoplanets still constitute only a tiny fraction of the known exoplanet population. However confirming/investigating grazing transiting exoplanets is also important. In a grazing transit the second and third contact points are missing the transit profile is V-shaped similar to that of an eclipsing binary. Consequently the light-curve solution is degenerate. Fortunately there is a solution: we need very high-quality multicolour photometric observations. Following this possibility we propose to utilise the colour difference between TESS and CHEOPS in order to refine the parameters and to confirm the grazing nature of selected transiting exoplanets namely TOI-3540 b and TOI-2193 b.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-fb1fwxc
title: 2385801

description:   Target RA (J2000):  181.632462  and deg    Target Dec (J2000):  -31.64567  and deg    Gaia GMag:  10.24    Programme ID:  CH_PR240022   PI of observing programme:  Jenkins   Title of programme:  Constraining the Prevalence of Metallic Clouds within the Neptune Desert   Abstract:  With the recent stunning discovery of a very high albedo for the extreme Neptune Desert planet LTT9779b a result that is likely due to the presence of high-altitude metallic clouds in the atmosphere scattering the incoming starlight we are finally beginning to understand the chemical structure and evolution of these desert worlds.  However given their rarity one may wonder whether such cloud structures are normal for these types of planets and if so what are the physical processes driving this.  In order to respond to this question we request observations using CHEOPS to observe two other planets that have recently been confirmed to reside in the Neptune Desert and who orbit stars bright enough to significantly detect their secondary eclipses in the optical.  We shall measure the eclipses of the planets TOI-1997b and TOI-2352b allowing us to place strong constraints on their albedos and therefore model their atmospheric structures.  This work will provide evidence for or against the presence of highly reflective silicate and titanium clouds in these planets and allow us to begin to build a global picture of the atmospheric constituents of some of the most extreme Neptune planets currently known.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-fddpwzt
title: 2573355

description:   Target RA (J2000):  76.649544  and deg    Target Dec (J2000):  -20.24559  and deg    Gaia GMag:  11.63    Programme ID:  CH_PR250026   PI of observing programme:  Chakraborty   Title of programme:  Not known   Abstract:  Not known    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-fe1zyt5
title: 2366465

description:   Target RA (J2000):  207.526169  and deg    Target Dec (J2000):  -40.83580  and deg    Gaia GMag:  9.615    Programme ID:  CH_PR240017   PI of observing programme:  Chakraborty   Title of programme:  Accurate and precise characterisation of the HIP 67522 system in the presence of significant stellar variability   Abstract:  Young planets are excellent laboratories to test planet formation and evolution pathways. However the accurate characterisation of parameters like the radius of the planet is limited by the enhanced activity of the host star. The impact of features like unocculted and occulted active regions is a growing challenge in the era of high-precision photometry and transmission spectroscopy and better characterisation of these features is now more vital than ever for the correct interpretation of atmospheres on exoplanets. Here we propose to precisely characterise the HIP 67522 system a 17 Myr Solar-like star exhibiting significant stellar activity and one of the youngest planet-hosting stars discovered to date. The HIP 67522 system consists of one confirmed transiting hot Jupiter (planet b) and an unconfirmed outer planet candidate (planet c). To characterise this key young system we aim to: i) obtain an accurate and precise radius measurement for the known transiting planet (planet b) by quantifying the effect of stellar activity on its transit depth and ii) confirm the candidate exoplanet (planet c) by following up the most likely period aliases of its two known transits. While accurately measuring the radius of planet b is vital for testing different planet formation and evolution models for hot Jupiters confirming planet c will make this the youngest multi-planet transiting system ever discovered making this a very compelling system to be observed by CHEOPS.    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-fief309
title: 2415345

description:   Target RA (J2000):  201.088165  and deg    Target Dec (J2000):  28.56778  and deg    Gaia GMag:  11.34    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-fjrxl3s
title: 2416986

description:   Target RA (J2000):  239.825516  and deg    Target Dec (J2000):  -49.36666  and deg    Gaia GMag:  8.821    Programme ID:  CH_PR140087   Programme Manager:  BATTLEY   PI of observing programme:  Benz   Title of programme:  Not known   Abstract:  Not known    [truncated! Please see actual data for full text]
DOI: 10.57780/esa-fkgwwuv
title: 2609761

description:   Target RA (J2000):  128.640289  and deg    Target Dec (J2000):  9.03533  and deg    Gaia GMag:  11.13    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]