Early Science with the Large Millimeter Telescope: Dust constraints in a z~9.6 galaxy

Abstract

Recent observations with the GISMO (Goddard-IRAM Superconducting 2 Millimeter Observer) 2 mm camera revealed a detection 8 arcsec away from the lensed galaxy MACS1149-JD1 at z=9.6. Within the 17.5 arcsec FWHM GISMO beam, this detection is consistent with the position of the high-redshift galaxy and therefore, if confirmed, this object could be claimed to be the youngest galaxy producing significant quantities of dust. We present higher resolution (8.5 arcsec) observations of this system taken with the AzTEC 1.1 mm camera mounted on the Large Millimeter Telescope Alfonso Serrano. Dust continuum emission at the position of MACS1149-JD1 is not detected with an r.m.s. of 0.17 mJy/beam. However, we find a detection ~ 11 arcsec away from MACS1149-JD1, still within the GISMO beam which is consistent with an association to the GISMO source. Combining the AzTEC and GISMO photometry, together with Herschel ancillary data, we derive a z_phot= 0.7-1.6 for the dusty galaxy. We conclude therefore that the GISMO and AzTEC detections are not associated with MACS1149-JD1. From the non-detection of MACS1149-JD1 we derive the following (3 σ) upper limits corrected for gravitational lensing magnification and for cosmic microwave background effects: dust mass < 1.6 x 10^7 M_sun, IR luminosity < 8 x 10^10 L_sun, star formation rate < 14 M_sun/yr, and UV attenuation < 2.7 mag. These limits are comparable to those derived for other high-redshift galaxies from deep Atacama Large Millimeter/submillimeter Array (ALMA) observations.

Minor changes to match the published version

References in corpus (21)

• A Dust-Obscured Massive Maximum-Starburst Galaxy at a Redshift of 6.34
• A dusty, normal galaxy in the epoch of reionization
• The SCUBA HAlf Degree Extragalactic Survey (SHADES) - III. Identification of radio and mid-infrared counterparts to submillimetre galaxies
• A complete sample of twelve very X-ray luminous galaxy clusters at z>0.5
• The Evolution of Dust in the Early Universe with Applications to the Galaxy SDSS J1148+5251
• Mass and magnification maps for the Hubble Space Telescope Frontier Fields clusters: implications for high redshift studies
• AzTEC Millimetre Survey of the COSMOS Field: I. Data Reduction and Source Catalogue
• The AzTEC mm-Wavelength Camera
• The dust mass in z > 6 normal star forming galaxies
• Dust production 680-850 million years after the Big Bang
• ALMA Observation of 158 micron [CII] Line and Dust Continuum of a z=7 Normally Star-forming Galaxy in the Epoch of Reionization
• The SCUBA HAlf Degree Extragalactic Survey (SHADES) - IV: Radio-mm-FIR photometric redshifts
• High-redshift quasars host galaxies: is there a stellar mass crisis?
• New constraints on dust emission and UV attenuation of z=6.5-7.5 galaxies from millimeter observations
• The optically unbiased GRB host (TOUGH) survey. VI. Radio observations at z<1 and consistency with typical star-forming galaxies
• Constraining dust formation in high-redshift young galaxies
• Dust formation, evolution, and obscuration effects in the very high-redshift universe
• Early Science with the Large Millimeter Telescope: Observations of dust continuum and CO emission lines of cluster-lensed submillimetre galaxies at z=2.0-4.7
• The redshift distribution of submillimetre galaxies at different wavelengths
• ALMA Observations of the Host Galaxy of GRB090423 at z=8.23: Deep Limits on Obscured Star Formation 630 Million Years After the Big Bang
• The sudden appearance of dust in the early Universe

Cited by in corpus (6)

• Interpreting the evolution of galaxy colours from $z=8$ to $z=5$
• A complete census of Herschel-detected infrared sources within the HST Frontier Fields
• The cosmic dust rate across the Universe
• Submillimeter Observations of CLASH 2882 and the Evolution of Dust in this Galaxy
• Considering light-matter interactions in the Friedmann equations
• SXDF-UDS-CANDELS-ALMA 1.5 arcmin${}^2$ deep survey