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- ID:
- ivo://pds-ppi/ulysses_cospin_ket_intensity/ppi/epn_core
- Title:
- Ulysses Jupiter Encounter Cospin Kiel Electron Telescope (KET) Intensity Data Collection
- Short Name:
- ULY-COSPIN-KET-I
- Date:
- 04 Mar 2024 19:10:39
- Publisher:
- Planetary Data System
- Description:
- This file contains data submitted to the Planetary Data System (PDS) by the Ulysses COSPIN investigators, for the Ulysses Jupiter Encounter, 1992-01-24 to 1992-02-17 (days 25-48 inclusive). All data on this volume are from the Kiel Electron Telescope (KET) detector.
- ID:
- ivo://pds-ppi/ulysses_cospin_ket_raw/ppi/epn_core
- Title:
- Ulysses Jupiter Encounter Cospin Kiel Electron Telescope (KET) Raw Data Collection
- Short Name:
- ulysses_cospin_k
- Date:
- 25 Apr 2025 02:06:52
- Publisher:
- Planetary Data System
- Description:
- This file contains data submitted to the Planetary Data System (PDS) by the Ulysses COSPIN investigators, for the Ulysses Jupiter Encounter, 1992-01-24 to 1992-02-17 (days 25-48 inclusive). All data on this volume are from the Kiel Electron Telescope (KET) detector.
- ID:
- ivo://pds-ppi/ulysses_cospin_let/ppi/epn_core
- Title:
- Ulysses Jupiter Encounter Cospin Low Energy Telescope (LET) Flux Data Collection
- Short Name:
- ulysses_cospin_l
- Date:
- 25 Apr 2025 02:05:16
- Publisher:
- Planetary Data System
- Description:
- This file contains data submitted to the Planetary Data System (PDS) by the Ulysses COSPIN investigators, for the Ulysses Jupiter Encounter, 1992-01-25 to 1992-02-17 (days 25-48 inclusive). All data on this volume are from the Low Energy Telescope (LET) detector.
- ID:
- ivo://CDS.VizieR/J/ApJS/120/399
- Title:
- ULYSSES supplement to GRB 3B catalog
- Short Name:
- J/ApJS/120/399
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present interplanetary network localization information for 218 gamma-ray bursts in the third BATSE catalog obtained by analyzing the arrival times of these bursts with the Ulysses and Compton Gamma Ray Observatory spacecraft. For any given burst observed by these two spacecraft, arrival time analysis (or "triangulation") results in an annulus of possible arrival directions whose half-width varies between 7'' and 32', depending on the intensity and time history of the burst and the distance of the Ulysses spacecraft from Earth. This annulus generally intersects the BATSE error circle, which results in an average reduction of a factor of 30 of the error box area.
23126. UMa Group
- ID:
- ivo://CDS.VizieR/J/AJ/105/226
- Title:
- UMa Group
- Short Name:
- J/AJ/105/226
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The Ursa Major Group (UMaG) is studied as a test case for the authenticity of Stellar Kinematic Groups, using Coravel radial velocities, recent compilations of astrometric data and new spectroscopic observations. Spectroscopic age indicators, particularly indices of the strength of chromospheric emission, are applied to solar-type candidate members of UMaG, and it is shown that stars that meet the spectroscopic criteria also have kinematics that agree better with the space motions of the nucleus of UMaG than does the starting sample as a whole. The primary limitation on the precision of kinematics is now parallaxes instead of radial velocities. These more restrictive kinematic criteria are then applied to other UMaG candidates and a list summarizing membership is presented. UMaG is also examined as a cluster, confirming its traditional age of 0.3 Gyr and a mean [Fe/H] of -0.08 +/- 0.09 for those stars most likely to be bona fide members.
- ID:
- ivo://CDS.VizieR/J/PASJ/61/177
- Title:
- 15um AKARI observations in CDFS field
- Short Name:
- J/PASJ/61/177
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Deep observations of the Chandra Deep Field South have been secured at 15um with AKARI/IRC infrared space telescope. From these observations, we define a sample of mid infrared-selected galaxies at 15um and we also obtain 15um flux densities for a sample of Lyman Break Galaxies at z~1 already observed at 24um with Spitzer/MIPS.
23128. 55 UMa spectroscopic orbit
- ID:
- ivo://CDS.VizieR/J/A+A/309/521
- Title:
- 55 UMa spectroscopic orbit
- Short Name:
- J/A+A/309/521
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The first investigation of the known triple system 55 UMa (2.55d binary in a ~1870-d orbit with the third star) based on electronic spectra led to several new findings about the system: (1) Discovery of spectral lines of the tertiary and an unambiguous detection of the lines of the secondary. Spectra of both primary and tertiary are of the same strength and correspond to spectral class A0V. The secondary spectrum is about twice fainter in the visual region and belongs probably also to spectral class A. (2) First self-consistent orbital solution describing close and wide orbit and the detection of apsidal motion for the close pair. The orbital period of the close pair was improved to (2.5538380+/-0.0000046d) and basic physical elements for all three stars and the system were estimated. The orbital solution also gives the period of apsidal motion of the close pair of (450+/-60)yr and leads to a good agreement with the published speckle-interferometric orbit for the distant companion if the longitude of periastron passage is increased by 180deg.
23129. 84 UMa ubvy photometry
- ID:
- ivo://CDS.VizieR/J/A+A/335/973
- Title:
- 84 UMa ubvy photometry
- Short Name:
- J/A+A/335/973
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present new longitudinal magnetic field and Stroemgren photometric measurements of the Bp star 84 UMa. From these data we determine a new rotational period P_rot_=1.38576+/-0.00080d, which is inconsistent with previously published values. The magnetic measurements indicate the presence of a weak, dominantly dipolar magnetic field in the photosphere of 84 UMa. We employ a new value of the rotational axis inclination in conjunction with the magnetic data in order to constrain the magnetic field geometry. We derive the following dipole oblique rotator parameters: i=59^+17^_-9_{deg}, {beta}=48^+17^_-29_{deg}, and B_d_=1620^+1270^_-30_G. A precise value of the radius (which we calculate in conjunction with the inclination using the Hipparcos parallax) allows us to locate 84 UMa on the radius-effective temperature plane. Using theoretical evolutionary tracks (Schaller et al., 1992, Cat. <J/A+AS/96/269>), we obtain values for the mass, age and surface gravity. These results place 84 UMa quite close to the ZAMS, a result inconsistent with the suggestion by Hubrig & Mathys (1994AN....315..343H) that the magnetic Ap stars may be near the end of their main sequence life.
- ID:
- ivo://CDS.VizieR/J/ApJ/895/71
- Title:
- 8um Cores in NGC 891, NGC 3628 and IC 5052
- Short Name:
- J/ApJ/895/71
- Date:
- 11 Mar 2022
- Publisher:
- CDS
- Description:
- To study the vertical distribution of the earliest stages of star formation in galaxies, three edge-on spirals, NGC891, NGC3628, and IC5052, observed by the Spitzer Space Telescope InfraRed Array Camera (IRAC) were examined for compact 8{mu}m cores using an unsharp mask technique; 173, 267, and 60 cores were distinguished, respectively. Color-color distributions suggest a mixture of polycyclic aromatic hydrocarbons and highly extincted photospheric emission from young stars. The average V-band extinction is ~20mag, equally divided between foreground and core. IRAC magnitudes for the clumps are converted to stellar masses assuming an age of 1Myr, which is about equal to the ratio of the total core mass to the star formation rate in each galaxy. The extinction and stellar mass suggest an intrinsic core radius of ~18pc for 5% star formation efficiency. The half-thickness of the disk of 8{mu}m cores is 105pc for NGC891 and 74pc for IC5052, varying with radius by a factor of ~2. For NGC3628, which is interacting, the half-thickness is 438pc, but even with this interaction, the 8{mu}m disk is remarkably flat, suggesting vertical stability. Small-scale structures like shingles or spirals are seen in the core positions. Very few of the 8{mu}m cores have optical counterparts.
