Deep Extragalactic VIsible Legacy Survey (DEVILS): DR1 Blended Spectra Search for Candidate Strong Gravitational Lenses
arXiv:2111.10475 · doi:10.1093/mnras/stab3408
Abstract
Here, we present a catalog of blended spectra in Data Release 1 of the Deep Extragalactic VIsible Legacy Survey (DEVILS) on the Anglo-Australian Telescope (AAT). Of the 23197 spectra, 181 showed signs of a blend of redshifts and spectral templates. We examine these blends in detail for signs of either a candidate strong lensing galaxy or a useful overlapping galaxy pair. One of the three DEVILS target fields, COSMOS (D10) is close to complete and it is fully imaged with Hubble Space Telescope Advanced Camera for Surveys (HST/ACS) and we visually examine the 57 blended spectra in this field in the F814W postage stamps. Nine are classical strong lensing candidates with an elliptical as the lens, out to higher redshifts than any previous search with spectroscopic surveys such as SDSS or GAMA. The gravitational lens candidate success rate similar to earlier such searches (0.1%). Strong gravitational lenses identified with blended spectroscopy have typically shown a high success rate (>70%) which make these interesting targets for future higher resolution lensing studies, monitoring for supernovae cosmography, or searches for magnified atomic hydrogen signal.
25 pages, 10 figures, 6 tables, v2 fixed figure 1 and 2 mislabeling
References in corpus (29)
- UltraVISTA: a new ultra-deep near-infrared survey in COSMOS
- The Expansion of the Universe is Faster than Expected
- The Sloan Lens ACS Survey. V. The Full ACS Strong-Lens Sample
- Science with ASKAP - the Australian Square Kilometre Array Pathfinder
- Galaxy And Mass Assembly (GAMA): autoz spectral redshift measurements, confidence and errors
- LinKS: Discovering galaxy-scale strong lenses in the Kilo-Degree Survey using Convolutional Neural Networks
- The Sloan Lens ACS Survey. XIII. Discovery of 40 New Galaxy-Scale Strong Lenses
- The Sloan Lens ACS Survey. XII. Extending Strong Lensing to Lower Masses
- Detection of the Gravitational Lens Magnifying a Type Ia Supernova
- MIGHTEE-HI: The HI emission project of the MeerKAT MIGHTEE survey
- Correcting the z~8 Galaxy Luminosity Function for Gravitational Lensing Magnification Bias
- 4MOST Consortium Survey 7: Wide-Area VISTA Extragalactic Survey (WAVES)
- WALLABY Pilot Survey: the diversity of ram pressure stripping of the galactic HI gas in the Hydra Cluster
- Direct Measurement of the HI-Halo Mass Relation through Stacking
- Modelling the Transfer Function for the Dark Energy Survey
- MIGHTEE: Are giant radio galaxies more common than we thought?
- Giant Metrewave Radio Telescope Detection of HI 21 cm Emission from Star-forming Galaxies at
- Spiral Disk Opacity from Occulting Galaxy Pairs in the Sloan Digital Sky Survey
- Lensing Probabilities for Spectroscopically Selected Galaxy-Galaxy Strong Lenses
- Galaxy And Mass Assembly (GAMA) Blended Spectra Catalog: Strong Galaxy-Galaxy Lens and Occulting Galaxy Pair Candidates
- MeerCRAB: MeerLICHT Classification of Real and Bogus Transients using Deep Learning
- Towards the first detection of strongly lensed HI emission
- Probing cosmic acceleration by strong gravitational lensing systems
- Improved mass constraints for two nearby strong-lensing elliptical galaxies from Hubble Space Telescope Imaging
- A strong-lensing elliptical galaxy in the MaNGA survey
- Prospects for observing strongly lensed supernovae behind Hubble Frontier Fields galaxy clusters with the James Webb Space Telescope
- Subaru FOCAS IFU observations of two z=0.12 strong-lensing elliptical galaxies from SDSS MaNGA
- 4MOST - 4m Multi Object Spectroscopic Telescope
- The Observable Supernova Rate in Galaxy-Galaxy Lensing Systems with the TESS Satellite