Euclid preparation: XXVII. A UV-NIR spectral atlas of compact planetary nebulae for wavelength calibration

Paterson K.; Schirmer M.; Copin Y.; Cuillandre J. -C.; Gillard W.; Gutierrez Soto L. A.; Guzzo L.; Hoekstra H.; Kitching T.; Paltani S.; Percival W. J.; Scodeggio M.; Stanghellini L.; Appleton P. N.; Laureijs R.; Mellier Y.; Aghanim N.; Altieri B.; Amara A.; Auricchio N.; Baldi M.; Bender R.; Bodendorf C.; Bonino D.; Branchini E.; Brescia M.; Brinchmann J.; Camera S.; Capobianco V.; Carbone C.; Carretero J.; Castander F. J.; Castellano M.; Cavuoti S.; Cimatti A.; Cledassou R.; Congedo G.; Conselice C. J.; Conversi L.; Corcione L.; Courbin F.; Da Silva A.; Degaudenzi H.; Dinis J.; Douspis M.; Dubath F.; Dupac X.; Ferriol S.; Frailis M.; Franceschi E.; Fumana M.; Galeotta S.; Garilli B.; Gillis B.; Giocoli C.; Grazian A.; Grupp F.; Haugan S. V. H.; Holmes W.; Hornstrup A.; Hudelot P.; Jahnke K.; Kummel M.; Kiessling A.; Kilbinger M.; Kohley R.; Kubik B.; Kunz M.; Kurki-Suonio H.; Ligori S.; Lilje P. B.; Lloro I.; Maiorano E.; Mansutti O.; Marggraf O.; Markovic K.; Marulli F.; Massey R.; Medinaceli E.; Mei S.; Meneghetti M.; Meylan G.; Moresco M.; Moscardini L.; Nakajima R.; Niemi S. -M.; Nightingale J. W.; Nutma T.; Padilla C.; Pasian F.; Pedersen K.; Polenta G.; Poncet M.; Popa L. A.; Raison F.; Renzi A.; Rhodes J.; Riccio G.; Rix H. -W.; Romelli E.; Roncarelli M.; Rossetti E.; Saglia R.; Sartoris B.; Schneider P.; Secroun A.; Seidel G.; Serrano S.; Sirignano C.; Sirri G.; Skottfelt J.; Stanco L.; Tallada-Crespi P.; Taylor A. N.; Tereno I.; Toledo-Moreo R.; Torradeflot F.; Tutusaus I.; Valenziano L.; Vassallo T.; Wang Y.; Weller J.; Zamorani G.; Zoubian J.; Andreon S.; Bardelli S.; Bozzo E.; Colodro-Conde C.; Di Ferdinando D.; Farina M.; Gracia-Carpio J.; Keihanen E.; Lindholm V.; Maino D.; Mauri N.; Scottez V.; Tenti M.; Zucca E.; Akrami Y.; Baccigalupi C.; Ballardini M.; Biviano A.; Borlaff A. S.; Burigana C.; Cabanac R.; Cappi A.; Carvalho C. S.; Casas S.; Castignani G.; Castro T.; Chambers K. C.; Cooray A. R.; Coupon J.; Courtois H. M.; Davini S.; De Lucia G.; Desprez G.; Escartin J. A.; Escoffier S.; Ferrero I.; Gabarra L.; Garcia-Bellido J.; George K.; Giacomini F.; Gozaliasl G.; Hildebrandt H.; Hook I.; Kajava J. J. E.; Kansal V.; Kirkpatrick C. C.; Legrand L.; Loureiro A.; Magliocchetti M.; Mainetti G.; Maoli R.; Marcin S.; Martinelli M.; Martinet N.; Martins C. J. A. P.; Matthew S.; Maurin L.; Metcalf R. B.; Monaco P.; Morgante G.; Nadathur S.; Patrizii L.; Pollack J.; Porciani C.; Potter D.; Pontinen M.; Sanchez A. G.; Sakr Z.; Schneider A.; Sefusatti E.; Sereno M.; Shulevski A.; Stadel J.; Steinwagner J.; Valieri C.; Valiviita J.; Veropalumbo A.; Viel M.; Zinchenko I. A.

Euclid preparation: XXVII. A UV-NIR spectral atlas of compact planetary nebulae for wavelength calibration

Paterson K.

•

Schirmer M.

•

Copin Y.

altro

Zinchenko I. A.

2023

journal article

Periodico

ASTRONOMY & ASTROPHYSICS

Abstract

The Euclid mission will conduct an extragalactic survey over 15 000 deg2 of the extragalactic sky. The spectroscopic channel of the Near-Infrared Spectrometer and Photometer (NISP) has a resolution of R ~ 450 for its blue and red grisms that collectively cover the 0.93-1.89 μm range. NISP will obtain spectroscopic redshifts for 3 × 107 galaxies for the experiments on galaxy clustering, baryonic acoustic oscillations, and redshift space distortion. The wavelength calibration must be accurate within 5 Å to avoid systematics in the redshifts and downstream cosmological parameters. The NISP pre-flight dispersion laws for the grisms were obtained on the ground using a Fabry-Perot etalon. Launch vibrations, zero gravity conditions, and thermal stabilisation may alter these dispersion laws, requiring an in-flight recalibration. To this end, we use the emission lines in the spectra of compact planetary nebulae (PNe), which were selected from a PN database. To ensure completeness of the PN sample, we developed a novel technique to identify compact and strong line emitters in Gaia spectroscopic data using the Gaia spectra shape coefficients. We obtained VLT/X-shooter spectra from 0.3 to 2.5 μm for 19 PNe in excellent seeing conditions and a wide slit, mimicking Euclid's slitless spectroscopy mode but with a ten times higher spectral resolution. Additional observations of one northern PN were obtained in the 0.80-1.90 μm range with the GMOS and GNIRS instruments at the Gemini North Observatory. The collected spectra were combined into an atlas of heliocentric vacuum wavelengths with a joint statistical and systematic accuracy of 0.1 Å in the optical and 0.3 Å in the near-infrared. The wavelength atlas and the related 1D and 2D spectra are made publicly available.