J. Fischer
YOU?
Author Swipe
View article: Local Analogs of Primordial Galaxies: In Search of Intermediate-mass Black Holes with JWST NIRSpec
Local Analogs of Primordial Galaxies: In Search of Intermediate-mass Black Holes with JWST NIRSpec Open
Local low-metallicity galaxies with signatures of possible accretion activity are ideal laboratories in which to search for the lowest-mass black holes and study their impact on the host galaxy. Here we present the first JWST NIRSpec IFS o…
View article: Local Analogs of Primordial Galaxies: In Search of Intermediate Mass Black Holes with JWST NIRSpec
Local Analogs of Primordial Galaxies: In Search of Intermediate Mass Black Holes with JWST NIRSpec Open
Local low metallicity galaxies with signatures of possible accretion activity are ideal laboratories in which to search for the lowest mass black holes and study their impact on the host galaxy. Here we present the first JWST NIRSpec IFS o…
View article: JWST detection of extremely excited outflowing CO and H<sub>2</sub>O in VV 114 E SW: A possible rapidly accreting IMBH
JWST detection of extremely excited outflowing CO and H<sub>2</sub>O in VV 114 E SW: A possible rapidly accreting IMBH Open
Mid-infrared (mid-IR) gas-phase molecular bands are powerful diagnostics of the warm interstellar medium. We report the James Webb Space Telescope detection of the CO v = 1 − 0 (4.4 − 5.0 μm) and H 2 O ν 2 = 1 − 0 (5.0 − 7.8 μm) ro-vibrati…
View article: JWST detection of extremely excited outflowing CO and H2O in VV 114 E SW: a possible rapidly accreting IMBH
JWST detection of extremely excited outflowing CO and H2O in VV 114 E SW: a possible rapidly accreting IMBH Open
Mid-infrared (mid-IR) gas-phase molecular bands are powerful diagnostics of the warm interstellar medium. We report the James Webb Space Telescope detection of the CO v=1-0 (4.4-5.0 um) and H2O nu2=1-0 (5.0-7.8um) ro-vibrational bands, bot…
View article: Importance of radiative pumping for the excitation of the H<sub>2</sub>O submillimeter lines in galaxies
Importance of radiative pumping for the excitation of the H<sub>2</sub>O submillimeter lines in galaxies Open
H 2 O submillimeter emission is a powerful diagnostic of the molecular interstellar medium in a variety of sources, including low- and high-mass star-forming regions of the Milky Way, and from local to high-redshift galaxies. However, the …
View article: The importance of radiative pumping on the emission of the H_2O submillimeter lines in galaxies
The importance of radiative pumping on the emission of the H_2O submillimeter lines in galaxies Open
H_2O submillimeter emission is a powerful diagnostic of the molecular interstellar medium in a variety of sources, including low- and high-mass star forming regions of the Milky Way, and from local to high redshift galaxies. However, the e…
View article: Upgrading the field-imaging far-infrared line spectrometer for the Stratospheric Observatory for Infrared Astronomy (SOFIA) with KIDs: enabling large sample (extragalactic) surveys
Upgrading the field-imaging far-infrared line spectrometer for the Stratospheric Observatory for Infrared Astronomy (SOFIA) with KIDs: enabling large sample (extragalactic) surveys Open
We present the initial design, performance improvements and science opportunities for an upgrade to the Field-Imaging Far-Infrared Line Spectrometer (FIFI-LS). FIFI-LS efficiently measures fine structure cooling lines, delivering critical …
View article: A proto-pseudobulge in ESO 320-G030 fed by a massive molecular inflow driven by a nuclear bar
A proto-pseudobulge in ESO 320-G030 fed by a massive molecular inflow driven by a nuclear bar Open
Galaxies with nuclear bars are believed to efficiently drive gas inward, generating a nuclear starburst and possibly an active galactic nucleus. We confirm this scenario for the isolated, double-barred, luminous infrared galaxy ESO 320-G03…
View article: First detection of the 448 GHz ortho-H<sub>2</sub>O line at high redshift: probing the structure of a starburst nucleus at <i>z</i> = 3.63
First detection of the 448 GHz ortho-H<sub>2</sub>O line at high redshift: probing the structure of a starburst nucleus at <i>z</i> = 3.63 Open
Submillimeter rotational lines of H 2 O are a powerful probe in warm gas regions of the interstellar medium (ISM), tracing scales and structures ranging from kiloparsec disks to the most compact and dust-obscured regions of galactic nuclei…
View article: Molecular outflows in local galaxies: Method comparison and a role of intermittent AGN driving
Molecular outflows in local galaxies: Method comparison and a role of intermittent AGN driving Open
We report new detections and limits from a NOEMA and ALMA CO(1-0) search for molecular outflows in 13 local galaxies with high far-infrared surface brightness, and combine these with local universe CO outflow results from the literature. T…
View article: SHINING, A Survey of Far-infrared Lines in Nearby Galaxies. I. Survey Description, Observational Trends, and Line Diagnostics
SHINING, A Survey of Far-infrared Lines in Nearby Galaxies. I. Survey Description, Observational Trends, and Line Diagnostics Open
We use the Herschel/PACS spectrometer to study the global and spatially resolved far-infrared (FIR) fine-structure line emission in a sample of 52 galaxies that constitute the SHINING survey. These galaxies include star-forming, active-gal…
View article: SHINING, A Survey of Far-infrared Lines in Nearby Galaxies. II. Line-deficit Models, AGN Impact, [C II]–SFR Scaling Relations, and Mass–Metallicity Relation in (U)LIRGs
SHINING, A Survey of Far-infrared Lines in Nearby Galaxies. II. Line-deficit Models, AGN Impact, [C II]–SFR Scaling Relations, and Mass–Metallicity Relation in (U)LIRGs Open
The SHINING survey (Paper I; Herrera-Camus et al. 2018) offers a great opportunity to study the properties of the ionized and neutral media of galaxies from prototypical starbursts and active galactic nuclei (AGN) to heavily obscured objec…
View article: Molecular gas in the northern nucleus of Mrk 273: Physical and chemical properties of the disc and its outflow
Molecular gas in the northern nucleus of Mrk 273: Physical and chemical properties of the disc and its outflow Open
Aiming to characterise the properties of the molecular gas in the ultra-luminous infrared galaxy Mrk 273 and its outflow, we used the NOEMA interferometer to image the dense-gas molecular tracers HCN, HCO + , HNC, HOC + and HC 3 N at ∼86 G…
View article: Outflowing OH<sup>+</sup> in Markarian 231: The Ionization Rate of the Molecular Gas
Outflowing OH<sup>+</sup> in Markarian 231: The Ionization Rate of the Molecular Gas Open
The oxygen-bearing molecular ions OH + , H 2 O + , and H 3 O + are key species that probe the ionization rate of (partially) molecular gas that is ionized by X-rays and cosmic-rays permeating the interstellar medium. We report Herschel far…
View article: Molecular Outflows in Local ULIRGs: Energetics from Multitransition OH Analysis
Molecular Outflows in Local ULIRGs: Energetics from Multitransition OH Analysis Open
We report on the energetics of molecular outflows in 14 local ultraluminous infrared galaxies (ULIRGs) that show unambiguous outflow signatures (P Cygni profiles or high-velocity absorption wings) in the far-infrared lines of OH measured w…
View article: Feedback and Feeding in the Context of Galaxy Evolution with<i>SPICA</i>: Direct Characterisation of Molecular Outflows and Inflows
Feedback and Feeding in the Context of Galaxy Evolution with<i>SPICA</i>: Direct Characterisation of Molecular Outflows and Inflows Open
A far-infrared observatory such as the SPace Infrared telescope for Cosmology and Astrophysics , with its unprecedented spectroscopic sensitivity, would unveil the role of feedback in galaxy evolution during the last ~10 Gyr of the Univers…
View article: Inflowing gas onto a compact obscured nucleus in Arp 299A
Inflowing gas onto a compact obscured nucleus in Arp 299A Open
\n Aims. We probe the physical conditions in the core of Arp 299A and try to put constraints on the nature of its nuclear power source.\n Methods. We used Herschel Space Observatory far-infrared and submillimeter observations of H2O and OH…
View article: Inflowing gas onto a compact obscured nucleus in Arp 299A: Herschel spectroscopic studies of H2O and OH
Inflowing gas onto a compact obscured nucleus in Arp 299A: Herschel spectroscopic studies of H2O and OH Open
Aims. We probe the physical conditions in the core of Arp 299A and try to put constraints to the nature of its nuclear power source. Methods. We used Herschel Space Observatory far-infrared and submillimeter observations of H2O and OH rota…
View article: The dark energy camera search for an optical counterpart to the first advanced LIGO gravitational wave event GW150914
The dark energy camera search for an optical counterpart to the first advanced LIGO gravitational wave event GW150914 Open
We report initial results of a deep search for an optical counterpart to the gravitational wave event GW150914, the first trigger from the Advanced LIGO gravitational wave detectors. We used the Dark Energy Camera (DECam) to image a 102 de…
View article: A DARK ENERGY CAMERA SEARCH FOR MISSING SUPERGIANTS IN THE LMC AFTER THE ADVANCED LIGO GRAVITATIONAL-WAVE EVENT GW150914
A DARK ENERGY CAMERA SEARCH FOR MISSING SUPERGIANTS IN THE LMC AFTER THE ADVANCED LIGO GRAVITATIONAL-WAVE EVENT GW150914 Open
The collapse of a stellar core is expected to produce gravitational waves (GWs), neutrinos, and in most cases a luminous supernova. Sometimes, however, the optical event could be significantly less luminous than a supernova and a direct co…
View article: BROAD [C II] LINE WINGS AS TRACER OF MOLECULAR AND MULTI-PHASE OUTFLOWS IN INFRARED BRIGHT GALAXIES
BROAD [C II] LINE WINGS AS TRACER OF MOLECULAR AND MULTI-PHASE OUTFLOWS IN INFRARED BRIGHT GALAXIES Open
We report a tentative correlation between the outflow characteristics derived from OH absorption at 119 μ m and [C ii ] emission at 158 μ m in a sample of 22 local and bright ultraluminous infrared galaxies (ULIRGs). For this sample, we in…