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Спутники
РН
SpaceX
Роскосмос
NASA
СпутникиРНSpaceXРоскосмосNASAThe Milky Way Backup Program (MWBP), a survey currently underway with the Dark Energy Spectroscopic Instrument (DESI) on the Nicholas U. Mayall 4 m Telescope, works at the margins of the DESI Main surveys to obtain spectra of millions of additional stars from the Gaia catalog. Efficiently utilizing times between ∼12° and 18° twilight and poor weather conditions, the MWBP extends the range of stellar sources studied to both brighter magnitudes and lower Galactic latitude and declination than the stars studied in DESI’s Main Milky Way Survey. While the MWBP prioritizes candidate giant stars selected from the Gaia catalog (using color and parallax criteria), it also includes an unbiased sample of bright stars (i.e., 11.2 ≲ G < 16 mag) as well as fainter sources (to G ≲ 19 mag). As of 2025 March 1, the survey had obtained spectra of ∼7 million stars, approximately 1.2 million of which are included in the DESI Data Release 1. The DESI spectra cover the wavelength range from 3600...
| # | Наименование новости | Тональность | Информативность | Дата публикации |
|---|---|---|---|---|
| 1 | A Unified Photometric Redshift Calibration for Weak Lensing Surveys Using the Dark Energy Spectroscopic Instrument | 0 | 7.2 | 04-08-2026 |
| 2 | The DESI Single Fiber Lens Search. I. Four Thousand Spectroscopically Selected Galaxy–Galaxy Gravitational Lens Candidates | 0 | 8.59 | 04-08-2026 |
| 3 | The DESI DR1 Peculiar Velocity Survey: Global Zero-point and H0 Constraints | 0 | 8.59 | 04-08-2026 |
| 4 | DESI DR1 Lyα 1D power spectrum: Validation of estimators | 0 | 8.98 | 04-08-2026 |
| 5 | Combined tracer analysis for DESI 2024 BAO | 0 | 10.27 | 04-08-2026 |
| 6 | Galaxy-multiplet clustering from DESI DR2 | 0 | 9.18 | 04-08-2026 |
| 7 | Energy Distribution of the Galactic Center Excess’s Sources | 0 | 6.06 | 18-08-2026 |
| 8 | Search for GeV-scale dark matter from the Galactic Center with IceCube-DeepCore | 0 | 10.94 | 18-08-2026 |
| 9 | Organization Release: DESI Completes Planned 3D Map of the Universe and Continues Exploring | 0 | 9.34 | 15-04-2026 |
| 10 | NSF NOIRLab Increases Science Productivity in 2025 | 0 | 10.74 | 17-04-2026 |