A5055026157- Galaxies: Formation, Evolution, Phenomena
- Astronomy and Astrophysical Research
- Stellar, planetary, and galactic studies
- Gamma-ray bursts and supernovae
- Astrophysical Phenomena and Observations
- Cosmology and Gravitation Theories
- Adaptive optics and wavefront sensing
- Astronomical Observations and Instrumentation
- Astrophysics and Star Formation Studies
- Diet and metabolism studies
- Astrophysics and Cosmic Phenomena
- Ear Surgery and Otitis Media
- Calibration and Measurement Techniques
- Advanced Vision and Imaging
- Radio Astronomy Observations and Technology
- Metabolism, Diabetes, and Cancer
- Diabetes and associated disorders
- Scientific Research and Discoveries
- Remote Sensing in Agriculture
- Dark Matter and Cosmic Phenomena
- Metabolism and Genetic Disorders
- History and Developments in Astronomy
- CCD and CMOS Imaging Sensors
- Nasal Surgery and Airway Studies
- Pulsars and Gravitational Waves Research
Max Planck Institute for Astronomy
2016-2025
University College London
2024
University of Copenhagen
2024
Flatiron Health (United States)
2024
Flatiron Institute
2024
Royal Holloway University of London
2024
University of California, Davis
2024
New York University
2024
Princeton University
2024
Marconi University
2023-2024
We present here the Calar Alto Legacy Integral Field Area (CALIFA) survey, which has been designed to provide a first step in this direction.We summarize survey goals and design, including sample selection observational strategy.We also showcase data taken during observing runs (June/July 2010) outline reduction pipeline, quality control schemes general characteristics of reduced data. This is obtaining spatially resolved spectroscopic information diameter selected $\sim600$ galaxies Local...
We present imaging data and photometry for the COSMOS survey in 15 photometric bands between 0.3 2.4 μm. These include taken on Subaru 8.3 m telescope, KPNO CTIO 4 telescopes, CFHT 3.6 telescope. Special techniques are used to ensure that relative calibration is better than 1% across field of view. The absolute accuracy from standard-star measurements found be 6%. corrected using galaxy spectra, providing colors accurate 2% or better. Stellar counts agree well with expected values. Finally,...
We present the largest and most homogeneous catalog of HII regions associations compiled so far. The comprises more than 7000 ionized regions, extracted from 306 galaxies observed by CALIFA survey. describe procedures used to detect, select, analyse spectroscopic properties these regions. In current study we focus on characterization radial gradient oxygen abundance in gas, based deprojected distribution found that all without clear evidence an interaction a common abundance, with...
The COSMOS-Legacy survey is a 4.6 Ms Chandra program that has imaged 2.2 deg$^2$ of the COSMOS field with an effective exposure $\simeq$160 ks over central 1.5 and $\simeq$80 in remaining area. combination 56 new observations, obtained as X-ray Visionary Project, previous C-COSMOS survey. We describe reduction analysis observations properties 2273 point sources detected above spurious probability 2$\times 10^{-5}$. also present updated data. whole includes 4016 (3814, 2920 2440 full, soft...
We have used data from the Sloan Digital Sky Survey (SDSS) Data Release 5 to explore overall structure and substructure of stellar halo Milky Way using about 4 million color-selected main sequence turn-off stars. fit oblate triaxial broken power-law models data, found a `best-fit' oblateness 0.5~100pc, after accounting for (known) contribution Poisson uncertainties. The fractional RMS deviation actual distribution any smooth, parameterized model is >~40%: hence, highly structured....
GEMS (Galaxy Evolution from Morphologies and SEDs) is a large-area (800 arcmin2) two-color (F606W F850LP) imaging survey with the Advanced Camera for Surveys on Hubble Space Telescope. Centered Chandra Deep Field-South, it covers an area of ~28' × 28', or about 120 Field areas, to depth mAB(F606W) = 28.3(5 σ) mAB(F850LP) 27.1(5 compact sources. In its central ~1/4, incorporates ACS GOODS project. Focusing redshift range 0.2 ≲ z 1.1, provides morphologies structural parameters nearly 10,000...
What is the relevance of major mergers and interactions as triggering mechanisms for active galactic nuclei (AGNs) activity? To answer this long-standing question, we analyze 140 XMM-Newton-selected AGN host galaxies a matched control sample 1264 inactive over z ∼ 0.3–1.0 M* < 1011.7 M☉ with high-resolution Hubble Space Telescope/Advanced Camera Surveys imaging from COSMOS field. The visual analysis their morphologies by 10 independent human classifiers yields measure fraction distorted in...
We present photometric redshifts and spectral energy distribution (SED) classifications for a sample of 1542 optically identified sources detected with XMM in the COSMOS field. Our template fitting classifies 46 as stars 464 nonactive galaxies, while remaining 1032 require templates an active galactic nucleus (AGN) contribution. High accuracy derived was accomplished result (1) photometry up to 30 bands high-significance detections, (2) new set SED templates, including 18 hybrids covering...
We show that the MBH–Mbulge scaling relations observed from local to high-z universe can be largely or even entirely explained by a non-causal origin, i.e., they do not imply need for any physically coupled growth of black hole (BH) and bulge mass, example, through feedback active galactic nuclei (AGNs). Provided some physics absolute normalization, creation fully hierarchical assembly BH stellar mass galaxy merging, an initially uncorrelated distribution masses in early universe. this with...
The Euclid space telescope will measure the shapes and redshifts of galaxies to reconstruct expansion history Universe growth cosmic structures. Estimation expected performance experiment, in terms predicted constraints on cosmological parameters, has so far relied different methodologies numerical implementations, developed for observational probes their combination. In this paper we present validated forecasts, that combine both theoretical expertise probes. This is presented provide...
We report on the measurement of physical properties (rest-frame K-band luminosity and total stellar mass) hosts 89 broad-line (type-1) active galactic nuclei (AGNs) detected in zCOSMOS survey redshift range 1 < z 2.2. The unprecedented multi-wavelength coverage field allows us to disentangle emission host galaxy from that nuclear black hole their spectral energy distributions (SEDs). derive an estimate masses through analysis broad Mg ii lines observed medium-resolution spectra taken with...
We report the final optical identifications of medium-depth (∼60 ks), contiguous (2 deg2) XMM-Newton survey COSMOS field. has detected ∼1800 X-ray sources down to limiting fluxes ∼5 × 10−16, ∼3 10−15, and ∼7 10−15 erg cm−2 s−1 in 0.5–2 keV, 2–10 5–10 keV bands, respectively (∼1 ∼6 ∼1 10−14 s−1, three respectively, over 50% area). The work is complemented by an extensive collection multiwavelength data from 24 μm UV, available survey, for each sources, including spectroscopic redshifts ≳50%...
Euclid is an ESA mission designed to constrain the properties of dark energy and gravity via weak gravitational lensing galaxy clustering. It will carry out a wide area imaging spectroscopy survey (EWS) in visible near-infrared, covering roughly 15,000 square degrees extragalactic sky on six years. The wide-field telescope instruments are optimized for pristine PSF reduced straylight, producing very crisp images. This paper presents building reference survey: sequence pointings EWS, Deep...
Galaxies, which often contain ionised gas, sometimes also exhibit a so-called low-ionisation nuclear emission line region (LINER). For 30 years this was attributed to central mass-accreting supermassive black hole (AGN) of low luminosity, making LINER galaxies the largest AGN-sub-population, dominating in numbers over higher luminosity Seyfert and quasars. This, however, poses serious problem. While inferred energy balance is plausible, many LINERs clearly do not any other independent...
We present the results on study of global and local M-Z relation based first data available from CALIFA survey (150 galaxies). This provides integral field spectroscopy complete optical extent each galaxy (up to 2-3 effective radii), with enough resolution separate individual HII regions and/or aggregations. Nearly $\sim$3000 have been detected. The spectra cover wavelength range between [OII]3727 [SII]6731, a sufficient signal-to-noise derive oxygen abundance star-formation rate associated...
We present the first public data release of CALIFA survey. It consists science-grade optical datacubes for 100 eventually 600 nearby (0.005<z<0.03) galaxies, obtained with integral-field spectrograph PMAS/PPak mounted on 3.5m telescope at Calar Alto observatory. The galaxies in DR1 already cover a wide range properties color-magnitude space, morphological type, stellar mass, and gas ionization conditions. This offers potential to tackle variety open questions galaxy evolution using spatially...
This paper describes the Second Public Data Release (DR2) of Calar Alto Legacy Integral Field Area (CALIFA) survey. The data for 200 objects are made public, including 100 galaxies First (DR1). were obtained with integral-field spectrograph PMAS/PPak mounted on 3.5 m telescope at observatory. Two different spectral setups available each galaxy, (i) a low-resolution V500 setup covering wavelength range 3745-7500 \AA\ resolution 6.0 (FWHM), and (ii) medium-resolution V1200 3650-4840 2.3...
ABSTRACT We present the catalog of optical and infrared counterparts Chandra COSMOS-Legacy Survey, a 4.6 Ms program on 2.2 deg 2 COSMOS field, combination 56 new overlapping observations obtained in Cycle 14 with previous C-COSMOS survey. In this Paper we report i , K 3.6 μ m identifications 2273 X-ray point sources detected observations. use likelihood ratio technique to derive association optical/infrared (IR) for 97% sources. also update information 1743 C-COSMOS, using not available when...
Abstract We present the survey design, implementation, and outlook for COSMOS-Web, a 255 hr treasury program conducted by James Webb Space Telescope in its first cycle of observations. COSMOS-Web is contiguous 0.54 deg 2 NIRCam imaging four filters (F115W, F150W, F277W, F444W) that will reach 5 σ point-source depths ranging ∼27.5–28.2 mag. In parallel, we obtain 0.19 MIRI one filter (F770W) reaching ∼25.3–26.0 build on rich heritage multiwavelength observations data products available COSMOS...